I'm having some water issues with just one of my tanks.
When I'm on the "centerline" tank, even with the faucets wide open, the water pressure pulses (visibly so at the tap) and the pump cycles on and off more than normal.
This doesn't happen when I'm on either of the two other tanks (forward or starboard).
The only thing that comes to mind is that I have a clogged vent line and so the tank is having trouble replacing the water with air. Any other thoughts as to what could be causing this?
Any watch-outs / difficulties in cleaning the vent lines?
Thanks!
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David
s/v Portmanteau
Hull #2133 -- 2003 MKII
Seattle, WA
Sounds like a supply side issue for sure. Difference in flow capabilities. Not enough water or too much air. Could be the vent. Might try just removing the vent hose at the tank and checking. See if your water line is kinked, restricted, clogged. Might try removing a good tank and a bad tank supply connection at the manifold and see if there's any difference in siphon/gravity flow. Could also be air getting into supply-side line, sometimes accompanies by a water leak, but sometimes not. Much harder to find if there's not a visible leak....
Nick Caballero
Retired C36/375IA Mk II Technical Editor
Dave
Are you sure there is enough water in the tank to cover the outgoing house? If not you will suck air with he water. Don't ask me how I know this.
__/)__/)__/)__Capt Mike__/)__/)__/)__
Punta Gorda Florida
1990 Std WK M35 Hull #1050
Also make sure the valves to the other tanks are closed. Sometimes when all the valves are open this happens.
Stu Jackson, C34IA Secretary, C34 #224, 1986, SR/FK, M25 engine, Rocna 10 (22#)
Tank was full. Will check on the other valves when I return to the boat, but since I only use one tank at a time the only possibility is that I didn't close one all the way.
David
s/v Portmanteau
Hull #2133 -- 2003 MKII
Seattle, WA
Dave...I had a similar problem with my starboard tank... I'd fill it an shortly after it acted as if it were empty... the pump would run and very little water came out.
The tank is close to a bulkhead through which the outflow line had to run. Turned out when the numnuts installed the tank, instead of putting a loop in the line to allow fexibility in the line to get it to the cutout in the bulkhead, the installer simply bent the line 90 degrees to the left, then 90 degrees to the right. This reduced the flow so much that, unless the tank was completly full, very little water was getting out.
You may want to check your outflow line to see if you have any major bends in it.
Chuck Parker
HelenRita 2072 Mk II
2002 Tall Rig - Winged Keel
Atlantic Highlands, NJ
Having the same problem, I have tried to check the line coming to the manifold to no avail since it's underneathe the flooring. Anyone have a solution to checking this line without tearing up things. I suspect kinks also.
Bill
Bill Taylor
Heel'n Good #1612
Washington, NC
I had a similar problem that was caused by overfilling the tank, so the water backed into the vent line. This should not have been a big deal; however, after lifting the boards in the aft berth, I discovered the vent line had a "dip" in it where overflow water accumulated and could not drain. I removed the hose and blew it out with a hand pump...all was fine after that.
Stephen Kruse
Kruse Control #1428
1995 C-36 MKII SR/WK
Lake Lanier, Ga.