www.iFourWinns.com

Anybody know of why my cold water pressure is bad in the galley sink? Hot water pressure is fine.

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2003 248 Vista on Lake Champlain

Is your pressure low using shore water or using your pump? Shore could be attributed to the regulator or you may have a clogged line.

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-Tony
2016 Robalo R200 w/Yahama 200!

Previous boats:
2003 Four Winns 248 Vista - sold
1994 Sunbird Corsair 200 - sold
1980 Checkmate Predictor - sold

it was remarkably well equipped for its day. It boasted an electric water heater, a pressure water system, an engine-driven generator (in addition to the ordinary alternator) and two electric heads. Since our philosophy at the time was a keep-it-simple minimalism, out came all of the above. I don't recall the fate of the water heater or pump, but one head remained on the dock in Nassau (with permission from the dock owner), the other became a planter in a Florida boatyard and the generator found new practical use in its recycled life as the basis for a mooring in a Bahamas harbor. There is a shut off valve underneath the sink...separate ones for hot and cold. and the Faucet Connector is a Brass Craft Engineered Polymer Braid

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Deleted by admin. No spam.

It's when using the pump. My boat lives on mooring, so I don't usually have access to shore water.
When I hooked up the shore water to flush the winterizer out, the pressure seemed OK in both lines. I don't see a kink, but didn't start to pull things apart yet.

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2003 248 Vista on Lake Champlain

I do notice a slight change in water pressure when using my pump vs. the shore water hook up. What isn't making sense is the hot water pressure being greater than the cold water. Have you tried all your faucets (galley, head and transom shower)? Is the cold water pressure lower than the hot in all three locations?

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-Tony
2016 Robalo R200 w/Yahama 200!

Previous boats:
2003 Four Winns 248 Vista - sold
1994 Sunbird Corsair 200 - sold
1980 Checkmate Predictor - sold

Mine does the same thing. Difference is .... and this is a weird one ... my faucets switch behavior. One day the head pressure is low. Next day, the galley. Sometimes hot, sometimes cold. The pump will pulse quickly when the low pressure is occurring.

Either my pump is going out or I have an wiring / connector issue on the pump.

Craig C.

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2003 Vista 248, VP 5.0 GXi-C, DP

It is only the cold and only the galley sink. Did it last year, too. When I hooked it up to the shore water, pressure was the same hot and cold. I was guessing a clog or kink, but it since shore water was fine, I just don't know. I haven't pulled anything apart, yet.

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2003 248 Vista on Lake Champlain

I notice my galley sink is slow, but only when using the center flow, not the spray pattern. I checked the flow rate (10 seconds to fill a container on spray, but nearly 30 on center). So I'm guessing there's some sort of clog in the handle itself. I'll have to pull it apart and try to unclog it.

In your case it sounds like there's a clog in the mixer valve inside the stem. Or possibly a problem with the cold water tubing leading to it. I'd start by disassembling and cleaning the mixer handle. It's pretty easy to do. Just use an allen key to remove the handle and then the collar around the stem should unscrew. That will come off and allow access to the mixer cartridge underneath of it. Do this with the water turned off, of course!

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-Bill Kearney, 2005 348 Vista

Hmmm. I guess that the Vista 248 isn't as "high end" as yours. I don't have any spray, only a bar sink type faucet. The reason why I didn't start to take anything apart, is 'cause I had equal pressure with the shore water. I think that may because shore water has more pressure than the pump, so I suppose working back from the faucet is my next step. I was thinking to drag my compressor to the temp. dock and try to blow back through the system, in case there is an obstruction, rather than take everything apart.

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2003 248 Vista on Lake Champlain

I WOULD NOT USE A COMPRESSOR HERE. The tubing fittings aren't designed to withstand a lot of pressure. You could blow out one (or more) of the fittings and make your life a lot more complicated. Besides, if there is an obstruction you want to remove it, not just force it somewhere else.

Ok, if the flow rate is the same when on shore water then it's likely an obstruction in the cold water line. Possibly just in the short segment that tees off the main line to the faucet. I don't know how the lines run in the 248, but in our 348 there's a single cold water line that runs from the tank, through the pump and then behind the cabinets and then back to the hot water heater. There's a tee off that line for the galley sink, the head sink, the toilet and the shower spray. Is the cold flow rate the same in the head sink? And at any other cold taps? I don't know what you have in your 248, in our 348 there's a transom shower (whose hose tends to kink) and a cockpit sink (cold only).

Since you have decent pressure on the hot side then it's reasonable to assume the main line itself isn't the problem. I say this because the hot water pressure is just being driven by the cold water pumped into it. Since it's ok then the pump must be working ok, as is the main line.

So it's either an issue with the tee of the main line or you've got an obstruction in the handle that the shore water is capable of overcoming. I'd start by taking apart and inspecting the handle first. That's certainly going to be easier than getting inside the cabinet to get to the tee of the main line.

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-Bill Kearney, 2005 348 Vista

I would agree with Bill. You could just install a new sink fixture or take it apart and you may find something.

I think you guys are missing that it only occurs with the pump. He has good pressure when hooked up to shore water. What doesn't make sense is that he has good hot water pressure when using the pump. The same (only) pump runs both sides of the system.

I'll take a look at mine this weekend and let you know what I find.

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-Tony
2016 Robalo R200 w/Yahama 200!

Previous boats:
2003 Four Winns 248 Vista - sold
1994 Sunbird Corsair 200 - sold
1980 Checkmate Predictor - sold

Sure it makes sense. The hot side is unobstructed. The cold side involving that spigot has the problem. At least that's what I've gathered from reading his post. What may be a factor in evening it out when on shore water is greater pressure. I don't know the values, but some pumps only push so many GPH. It's possible the shore water pushes a lot more. At least up to the limit of the pressure reducer inside the shore water hookup. The higher pressure might not be noticeable coming out the hot side, but just high enough to make the cold side appear to flow better.

One simple way to test flow rates is to count how many seconds it takes to fill a container of a known size. Time how long it takes to fill it and then do the math to multiply for the gallons per hour rate.

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-Bill Kearney, 2005 348 Vista