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Galley sink loses water pressure on 2 of 3 tanks

Posted: Mon Feb 03, 2014 5:27 pm
by PHerzfeld
Hi all,

I'm not much of a plumber so excuse me if there's an obvious answer to this.

When I have the main (forward) water tank turned off (or empty) the water pressure in the galley sink drops to almost a dribble even though the other two tanks (mid & aft) are full and open. At the same time, the head sink has normal pressure, and so does the shower. Only the galley sink pressure drops. If I open the forward tank the galley pressure returns to normal. I thought all three were feeding the same system and evenly pressurized from the pump? Am I wrong? What could cause that symptom and where should I be looking to resolve it?

Thanks in advance of any help or suggestions,

Phil
Paramethia
Hull #55

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Mon Feb 03, 2014 5:48 pm
by DuncanMcMillan
Try closing 2 of 3 .

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Mon Feb 03, 2014 5:50 pm
by KenKrawford
Phil, try taking the aerator out of the galley faucet. It simply unscrews from the end. I'll bet there's a bunch of crud trapped on the screen. Run the faucet with the aerator out to confirm.

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Thu Feb 06, 2014 8:23 pm
by Triumph
Is there any difference in hot water verses cold water with the various tanks?
Do you close the valve to the forward tank when it is empty or you use one of the other tanks?

Bill

TRIUMPH

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Fri Feb 07, 2014 3:33 pm
by DuncanMcMillan
I close the valve on the empty forward tank as the flow starts to weaken, turn off the faucet, turn on the next tank valve, turn faucet back on. A few burps and then full flow.
Should not be any difference in hot versus cold for the various tanks.

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Tue Aug 18, 2015 12:30 pm
by Steve A
Can someone tell me which valve if for the tank in the bow and which is for the tank in the stern? They two valves are lined up from port to starboard under the galley sink.

Steve A.
Jester
Hull # 160

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Tue Aug 18, 2015 9:01 pm
by TBOT422
On our 350, the valve for the forward tank is directly to port of the sink drain seacock. The valve for the aft tank is aft of the sink drain seacock. Of course there is probably very little likelihood that Catalina put any of the valves in the same place on any two boats.

It should be pretty easy to tell. Open one of the valves and run all the water out (be sure the second valve is closed), then check the tank gauge above the chart table and see which one is empty. Close that valve and open the other and see if the water pump pressurizes and you have water (assuming it is not empty as well). Then, with BOTH valves CLOSED, fill either the front tank or the aft tank, and check the tank gauge above the chart table. One of them should be full and the other less than full. The full one is the tank that you filled. It is important that you keep both valves CLOSED while filling a specific tank. If both of the valves are open, water will flow from one tank to the other and you won't know which is which. I use this fact all the time when cleaning and filling the tanks. If both valves are open you can fill both tanks with water flowing into only one of them. Very convenient!

Good Luck

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Mon Oct 19, 2015 9:34 am
by nybor
Hi folks.
I decided to clean my two tanks with Clorox (1/4 cup only) and then Vinegar. However, now neither of the tank monitor indicators show anything. I read how to calibrate them and tried both full and then empty. Has anyone had this happen to them? They worked fine before my cleaning. - Isn't that always the case!

thanks

dave

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Sun Oct 25, 2015 4:46 am
by KevinMc
Here is the link to the tank monitoring system I have installed to hull #59. At the bottom of the web site page are links to the manuals. I had to replace the system on my boat last year and Dennis was great to work with.

http://www.ferriellosales.com/Monitoring_Systems.html

Re: Galley sink loses water pressure on 2 of 3 tanks

Posted: Wed Oct 28, 2015 6:39 am
by wcconway
Dennis at Ferriello sales is great! Helped us via phone during an upgrade. And, even called back to check in on is. We highly recommend his products!