Poor Water Pressure from ONLY the Sink faucet

Petep

Petep

Member
Oct 5, 2006
518
Grosse Pointe, MI
Boat Info
460 Sundancer
Engines
Cummins 480CE
Can't figure out why I have no water pressure issues anywhere else on board and it doesn't mater if I'm hooked up to the city water or on the ship's pumps. My "main" galley faucet has restrected waterflow on both hot&cold. Even the spray head located next to it has good pressure so that's what I have been using for cleaning and to get a drink. I have done the obvious, meaning unscrewed and cleaned out the screen on the threaded end at the top of the faucet. Any other suguesstion on this on this one? It's got me baffled. Maybe someone else here on the board has had this problem also.
 
Same problem here. I did let the hot water run for about 5 minutes and it got better, but it still does not have the pressure as other outlets...
 
Exactly the same problem on my 280DA. Great pressure everywhere else; lousey pressure at the galley faucet. Can't wait for a CSR solution to this one.
 
When you had the aerator off the faucet, did you check to see if there was a water ristrictor either inside the faucet or possibly built into the various components of the aerator assembly itself? You find restrictors in a lot of home faucets today to help conserve water and many times they are removable.

If you didn''t check the flow when you had the aerator off, I would remove it again, make sure there is no separate resrictor in the faucet itself, and then turn on the water to see what the flow is like without the aerator. If it works fine that way, then maybe you can do something to get rid of the restrictor or modify it.
 
Before I give my opinion and experience here, do you know the brand of the kitchen faucet? Is it a Grohe?
 
Don't make the man beg Gary... give it up!

P.S. I have a Grohe Alira in the galley and it is definately slower...
 
Sorry, I've been out cruising for 10 days so-back to my faucet. Gary, it is a Grohe faucet, looks close to the "Classic" version but different handles. So what do I need to do? change the "areators"? How do I do that-what do I need to buy and where? Thanks, in advance for the tips.
 
I unscrewed the screen at the end of the faucet (threaded end) and there is nothing there that causes any obstructions and still runs slow even with it removed. Any ideas???
 
I have Grohe faucets in my house and on the boat and I can tell you that the cartridges inside those things go bad all the time regardless of age and for no reason. When a cartridge goes bad, the symptoms can range from dripping/leaking all the time to no water flow to faucet will not turn off.

Go to the Grohe web site and look up your faucet and they will have an exploded view of the thing. It'll show how the cartridge comes out along with the part number. What I would do is turn off the boat water pumps, take the faucet cartridge out and then turn the boat water back on to see if you have good water flow coming into the faucet. If you do, you can get new cartridges easily from plumbingsupply.com or even a local shop if you have one (they'll probably have to order it). Carry a spare or two.

If you don't have good water flow to the faucet, you'll need to trace the line back to the pump or manifold to see if you have any kinks/restrictions.

My shower on the boat had the cartridge go bad this year and it's symptom was VERY slow/no water flow. My house has at least 2 or 3 cartridges go bad every year. They are just crap IMO.
 
your other option is to just call a good plumber that has experience with Grohe... I doubt the Sea Ray dealer service guys are the best route. These are just standard household faucets.
 
Thanks for the tips...What does the "cartridge" do, and where is it located? The hot and cold have the same restricted flow, the sprayer does not. The model you have shown me looks like mine except for the handles, mine are more rounded and chrome and brass. Thanks for the exploded view and parts.
 
The cartridge is the variable valve that goes from all off to all on. On your faucet there is a different one for hot and for cold (one goes clockwise and the other goes counterclockwise and is part 2 and 3 in that diagram). This is an easy DIY thing and getting the cartridge out is only one or two screws. The tricky part, which the diagram helps with, is finding the snap in plastic cover and/or set scew to get the handle off. Again, I would pull one of the cartridges out and ten turn on the boat water pump to see if you have good flow. If you do, it's probably the cartridge.
 
I guess I'll ask one more question: Did you *ever* have good flow through this faucet? You've owned the boat how long?

If you've had this boat since it was new, maybe your faucet is just a bad match for the pressure you have on the water system.
 
The water pressure was never real strong but, it was better than it has been this summer. It is low on flow on both the ships water pumps & the city water hook-up. We are on the city water hookup at the marina and always hook up when we are cruising as we need the water for showers, cleaning, washing clothes etc. (my wife runs that Splendide almost daily when aboard). I would have to say the fow of water is reduced by approx. 50%.
 
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