Are you talking about the hole that drains the bottom front of the anchor lock out of the front side of the hull?

If so, I just fixed mine, as it was leaking into my forward cabin section.

With mine, the problem was that the copper(?) tube had corroded or lost some inner sealant or some such. Goggling this, the best answer was to find a smaller diameter tube (I found plastic) that will fit inside the copper tube. Then just coat it with sealant, push it in and saw off the extra sticking out from the hull. Make sure to seal both ends well. It surprised me how much could leak into the cabin from this little malfunctioning tube.

This seems to have solved my leak. However, I'm not really happy with the smaller diameter tube. Bits of seaweed can clog it easier, and it's a b*&#h to get my hand down to the bottom of the anchor locker to clean it out.

Now that I know where the leak originates from, I think I'll simply drill out the plastic and the copper tube - it's only about 2 inches long - and replace it with a new larger diameter copper tube, i.e. get it back to the original size.

Interesting thread. I have just purchased (2 months ago) a 1984 36. It has no external drain for the anchor locker. Seems it drains thru the bilge. I was thinking to change this to a thru hull on one side of the bow. From what I read above you all already have external drainage, even on older Mark 1 boats yet mine does not. Did Catalina change this during production of the Mark 1. I would be grateful to anybody who has already made this mod as to how they went about it. My boat is number 178.
 

My 1984 MkI (#255) has a small hole on the very leading edge of the bow. Almost invisible and easy to clog. Can't see any way how the anchor locker can drain into the bilge.....

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Haha
I thought that little hole was a ding from a previous owner. Thanks for the info.
 

Just for info, problem I founded some weeks ago...

Owner of c36 hull 1122 since new back to 1991...
Since some time I was stating salt water coming onboard. First I thought it was because waves washing the deck and arriving inside... But later I realised that even sailing on calm waters, sea water was coming in.

Finally we discovered   the water came in trough the trough hull at the front of the boat used to empty the anchor well.

When disassembling the fitting, it just broke into pieces! So we are lucky we discover in time the problem.

We have now replace both trough hull fittings, the one inside the anchor well and the hull fitting. The one inside the anchor well was ok. We also replace the hose.

It is my opinion that will be advisable to inform Catalina owners of this problem. The trough hull fitting is exposed to sun light and in my opinion this is what has accelerated the failure of this piece.

As it location has not easy access, especially if you have an additional water tank, in case of problem the solution will be difficult if sailing.

Will recommend to replace the original with a brass or ss trough hull. Best regards! 

Eureka II c36 hull 1122, . Home port Barcelona, Spain

I have this problem too & have been trying to find out how to access the anchor locker drain on a 2002 Mk II. I have the V berth water tank. Anyone have any ideas? It looks like I may have to take out the shelf to get out the forward bulkhead panel but I'd prefer to know what's behind the panel & if there are other alternatives before I start disassembling.

I've tried our friends @ Catalina & since they moved to Florida I'd have to say Warren is just about useless. I've called on 2 different problems & he knew nothing both times.The answer is always "well, we didn't build that model here".

I have this problem too & have been trying to find out how to access the anchor locker drain on a 2002 Mk II. I have the V berth water tank. Anyone have any ideas? It looks like I may have to take out the shelf to get out the forward bulkhead panel but I'd prefer to know what's behind the panel & if there are other alternatives before I start disassembling.

I've tried our friends @ Catalina & since they moved to Florida I'd have to say Warren is just about useless. I've called on 2 different problems & he knew nothing both times.The answer is always "well, we didn't build that model here".

Eladio... thasnks for the input. If I understand you correctly, you had to actually cut thru the fiberglass well in which the forward water tank sits? I was REALLY hoping there was an easier way to do this.

The location of this through hole for the anchor locker has always made my nervous. On my 2001 it is just barely above the waterline and have always thought that it would be a major problem to tend to. I will have to take a closer look at it the nixt time I am onboard.  Thanks for the input.

I've spoken to Warren (at Catalina) and to the tech support people at Catalina Direct. At least for a Mk II it seems there is no other way than to disassemble the shelf and bulkhead in the vee, They were not sure if there is a fiberglass bulkhead behind the wood panel. If there is, I'll have to cut thru that to access the hose (unbelievable that there is a hose so close to the water line with so little access).

I plugged the drain hole from the outside with Boat Seal temporarily and will begin to disassemble after I haul & winterize in about 4 weeks. I'll document & post pictures of what I find in the fall.

Until then... fair wind & a following sea to all.

Actually it does drain... into the bilge... that was what caused me to notice the problem in the 1st place. I plugged it from the waterline drain hole, not from the drain in  the anchor locker so whatever water goes into the locker goes into the bilge.

OK... got the answer to the anchor locker drain problem.

1st, to recap, we noticed the bilge pump was running almost continuously on a port tax. Pulled the V berth water tank but that didn't help...could see water running into the bilge from forward while sailing but not at rest. Checked all the obvious thru-hulls but no leaks; plugged the anchor locker drain & that stopped the water flow so that was the problem. Can't get to under the anchor locker thru the shelf the water tank sits in.... trust me on that.

The 2nd problem was getting to the space under the anchor locker. Had to remove almost all the panel & trim since all the pieces interlock (see pic 1). The bulkhead under the forward shelf is the one you need to remove & it fell out when I removed the shelf so you may be able to force it out without removing all the other pieces but I was afraid of destroying that piece by prying at it with a screw driver as I didn't know how it was fastened in at the time.

The schematic someone posted shows a hose with a loop but mine didn't have the loop.. it was a straight piece.... and its very crowed in the space with the anchor windlass in the way. As you can see in pic 2, the hose simply came off the nipple on the bottom of the anchor locker. Both ends of the hose have only one clamp & the nipples are too short for two clamps. The hose is a heavy duty wired hose.

You can't easily check to see if your hose is connected other than having water coming into the bilge as I did so its best to pay attention to that (you can actually see it flowing into the front of the bilge) & the excessive running of the bilge pump . If you do open your system up, have a shop vac handy as its covered with fiberglass dust.

As you'll not from the pic, this is the way you access the winch if you need to work on that.

On my Mark1 there is no tank forward. Removing the panels ahead of the V berth is pretty strait forward making replacement of the hose or even the through hull fairly easy though as always you are working in cramped spaces.

New owner of Mk1 1988 model.  We noticed water getting into the v berth on a port tack and figured it must be coming from the anchor locker drain and migrating thru a poor seam in bulkhead btwn locker and berth.  I removed old silicone in locker and reinforced bulkhead with fiberglass cloth and epoxy.  Seems to have done the job; however,  has anyone added a check valve to this system? 

Jerry
MarJon II
1988 Hull # 838
Ashland, WI

Just a quick reminder for folks with early ( <86??). There is no hose nor thruhull fitting as described above. Early anchor drains went directly forward using a short piece of copper pipe. It exits dead center on the bow about 6” above the water line.   For those of us in salt water the copper corrodes and causes leaks just like those described above. 

There are several fixes in the archives here, including silicon a Plastic hose inside the copper pipe and removing and refitting a new copper or fiberglass tube (some with larger diameter). 

I’m going with the remove and replace route as weather warms up. 

Les

I thought I'd Share my experiences with the dreaded anchor locker drain hose in our '96 Mk II.  We noticed in the spring of 2018 that the forward compartment ahead of the forward water tank was filling with water and in our case I don't believe it drained out from there but instead just accumulated.  The culprit was a crack in the forward side of the anchor locker drain hose that, whenever underway, had water spraying forward into the inside V of the bow then running down into the compartment below.  In the photo the crack is on the far side of the hose. 

I wanted to replace the hose with something sturdier as it was thin-walled bilge hose with black reinforcing.  The good news is that with the very thin walls it can have a tight bend radius which is needed for the small space which connects the fitting in the bottom of the anchor locker and the through hull.  The bad news is that it is not at all sturdy for below the waterline applications, and as you will see from the photo below, when I removed it it had become so brittle that it cracked in half.  

I tried several hoses of 1" ID to see if I could get a sturdier one with the necessary bend radius to make the two connections work but no luck.  The connection space is too tight, and the angles required to accommodate the fittings were not friendly.  I made a rough sketch to get my head around the angles involved.  It's not accurate but it gives an idea of the problem.    I also tried to frankenstein a hose made of 90 degree elbows but it was too stiff and still couldn't meet the odd angles required to connect to each fitting square-on. Note the old brittle hose.  In the end I resigned myself to a semi-frankenstein arrangement: one 90 degree elbow to take some of the strain off of the hose for one bend, some underwater rated rubber hose for a short run to grab the through hull from the elbow, and a length of new bilge hose of the same type that was there in the first place.  I used sealant on all of the joints before applying the hose clamps as that was how I found the original hose had been connected (and I removed all old sealant from the fittings before applying the new hose).

In another thread (https://www.catalina36.org/forum/technical-discussion/anchor-locker-drai...)  and above, people have mentioned that the through hull appears to be plastic and should be replaced.  I considererd doing this but basically ran out of time.  I did notice, though, that the amount of threads that were visible sticking through the locking nut on the through hull looked like the fitting had been significantly cut down in size in the past, possibly to fit installing it the tight space in the bow.  This was also a reason that I designed the new hose to be able to atach to these threads as securely as possible with minimal strress that would push it from being on-centre.  Maybe in another year I will replace the through hull, but for now after a 10 hour passage the entire arrangement is bone dry.

One final note: when you remove the kick panel in the front of the V berth, the only connection you can see is the one on the anchor locker.  The through hull can be seen with a camera or a mirror but you can't get your head in there.  This makes for a tricky repair needing patience and some luck as you willl be working by feel one-handed.  I also tied thin line to my tools and the hose as there is essentially no way to get at them if they fall into the forward compartment.  It may have been easier if I had cut away some of the fibreglass but I didn't want to go to that bother since it was possible to repair without it. 

Good luck!

Doug

Mike

With a pre 1987 boat your anchor locker drain is different from what we have on MarJon II.  I think you have the small tube that goes out the bow, whereas our anchor locker drain goes out a thru hull in the starboard bow just aft of the stem and above the waterline by a few inches.  On MarJon II the drain in the bottom of the anchor locker is accessed by removing access panels that support the V-Berth cushions; therefore, access to the drainhose is very easy, except for the fact that I have to get my 6' 3" frame into that compartment under the V-Berth - at least there is no dissambly required.  I don't know what that pre 1987 drain looks like but you may access it in the same manner.

That being said we were also having a water ingress problem in the forward compartmemnt with water on the V-Berth.  I suspected the drain contributed to it but in an indirect manner.  In MarJon II if we heal enough to starboard this places the thru hull for the anchor lock drain far enough under water to permit water into the drain hose and eventually the anchor locker.  It was my suspicion the water then passed through aging fiberglas seams that had long since been comprimised.  Obviously these seams had caused one of the previous owners problems because they were sealed with silicon.  It was a tough job getting the silicon out (stand on your head in a laundry tube for prolonged perriods of time) then I put epoxy, glass cloth and more epoxy over the seams.  I'm not sure it's perfect but I think we've seen an improvement.  To protect my work I lined the lower half of the anchor locker with a matting materrial like you would see along a pool - I have two anchor rodes in there with a total of 30 feet of chain. Another thing I did, again I don't think it will apply to you, is I put a check valve in the drain line.  From my crusory research I gather that modern code technically requires a seacock in this thru hull, even though it is above the static waterline.  Without a doubt it is under the waterline with any good starboard heal; consequently, code requires a seacock.  If it were anywhere else I would installl one, but I don't want to remove all the bedding and cushions in the V-Berth and crawl into the forepeak everytime it rains or I take on a spray on a starboard tack and then close it on a port tack.  I think I'm getting some water past the check valve and I'm not sure it's draining as rapidly as I would like, perhaps that is the orientation of the valve - maybe it could stand to be in a section of the drain that is more vertical.  I'll have to refresh my memory of how it sits this spring - that's still a ways off our harbor had 3 inches of snow less than two weeks ago.

Before you start taking panels apart dive down into the forepeak and check there first.  And stick your head into the anchor locker and check those seams.  Furthermore, the source of water in your anchor locker could be different, I thought I saw somewhere in this thread (or elsewhere) that those small anchor locker drain tubes can become easily blocked.  That will keep water in your locker and give it a chance to seep through compromised seams.  Good Luck.

Jerry
MarJon II
C36 1988
Hull No. 838

With our setup, it seems that any bow wave from forward way was enough to force water up through hull and the drain hose, whether just motoring flat or on either tack.  As Jerry mentions, there is enough water pressure to force water all the way up into the anchor locker so a check of its lower integrity and that of it's own plastic 'through hull' and any sealant for that fitting in the base of the locker would be warranted.  I was surprised that the crack in our hose, just below the fitting into the anchor locker, was not just an occasional drip leak but rather was streaming straight out of the crack in the hose, clearly under some pressure.

Doug