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Pressure pump question

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islander
Master Marine Consultant

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USA
4024 Posts

Initially Posted - 01/04/2009 : 12:03:25

I would like to install an aft shower. I have a auto pressure pump and cold water shower asembly laying around so I would like to install it. It's very handy in salt water to rinse off with. I would like to also keep the flipper faucets. My question is where to mount the pump,(I guess many of you have installed a pressure water system in your boats) and if I tap into the water line that comes out of the water tank with a tee fitting, will this end up just sucking the water back from the flipper faucets untill it is sucking air? Would a one way valve placed after the tee for the pump and before the tee that splits the water for the two sinks solve this if it happens. Any thoughts?

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound

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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts

Response Posted - 01/04/2009 : 12:32:02

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by islander
 I would like to also keep the flipper faucets.<hr height="1" noshade id="quote"></blockquote id="quote">Why??

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islander
Master Marine Consultant

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USA
4024 Posts

Response Posted - 01/04/2009 : 12:55:40

Well I kind if like them for conserving water, and to replace them ( they leave a very large hole in the counter top) would require doing something cosmetic to the counter top such as a plate of some sort then mounting the new faucet with the smaller foot print hole. This can be done, just opens a new can of worms but I'm open for ideas.

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OLarryR
Master Marine Consultant

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USA
3473 Posts

Response Posted - 01/04/2009 : 22:48:39

Scott,

Using a 1-way valve (also called a check valve) will probably work - Keep the water from sucking out of the sink faucet line when the pump is on for a shower head, but allows the sink faucet to operate when just the faucet is used. However, it depends on the check valve internal workings. Some close the seat/disc by gravity alone and some by a spring..and some by both. The flipper faucet may not be able to overcome the spring tension sufficiently to operate the faucet satisfactorily.

My thought is that it would be better to have a fool proof system line-up by using a 3 way valve instead of the tee. Then you would not need a check valve. While it means that you would have to turn the valve one way or the other to operate either the shower head or the sink, that to me could be made very user-friendly if you have the valve handle easily accessible for switching services. Too late for me to find a suitable and inexpensive 3-way valve for a low pressure service. Also, you may have to figure out the end connections desired snd/or adapters needed for the line hook-ups. Here is one 3-way valve but I am sure there are others that would be for lower pressure, less expensive and possibly more suitable for your needs. But it would work.
http://www.wmjmarine.com/gro-twv500.html

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farrison
Navigator

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USA
166 Posts

Response Posted - 01/05/2009 : 10:19:33

Scott; The PO of my '82 boat had installed a Jabsco pressure pump and small pressure tank under the stove, right above the seacock. He had actually screwed them to the hull and the screw tips protruded through the bottom paint! Since the pump and tank was still functional, I took a piece of plywood about 10" wide and 12" tall and wrapped it with fiberglass cloth with about two inches of cloth hanging off the top and bottom ends. I placed this under the sink, leaned up against the wall of the lazerette at about a 30 degree angle, so the base rested on the bottom of the boat. The excess glass/epoxy holds it to the boat and the pump was screwed to this board. This lets me access the assembly for winter draining and all the connections are also accessable. Power is right above it on the other side of the lazerette wall. I trew out the old faucet and found a nice single knob faucet on-line made buy Jabsco also. I did have to make a cover plate for the huge hole in the counter. If send me an e-mail and I will forward a picture if you would like.
I also fixed the screw holes in the hull!

Paul

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islander
Master Marine Consultant

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USA
4024 Posts

Response Posted - 01/05/2009 : 16:56:13

Screwed through the hull!!! Amazing, And just when you think you've seen it all! Everybody knows you don't screw through the hull, you use nails and then bend them over so they won't come out! Whats the matter with that guy! Anyway Paul I didn't know if there was enough room below the sink or not (the boat is all closed up and at the Marina) and I just haven't had the time to go up and shimmy inside to look for a suitable mounting spot. I was hoping to mount it in the little compartment behind the companion way stairs if it is big enough. Larry, I think you might be right about the flipper faucet not having enough umph to move the ball so I think that the flipper faucets will have to go. I don't want to do this if it is going to give me problems later on. I would like to know what you used to cover the hole in the counter top with, Plastic? Teak? Ductape?

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Jefffriday
Navigator

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USA
198 Posts

Response Posted - 01/05/2009 : 20:57:37

I epoxied in a piece of 3/4 plywood to the hull near my old speed transducer, just aft of the battery box, then mounted my pump to it with some vibration absorbing felt I had from another life. I replaced my flippers with swan type faucets in both the galley and the vanity. It makes washing your hands or dishes much easier. they have some mixer types on clearance at West Marine, you could just leave the hot valve closed.. http://www.westmarine.com/webapp/wcs/stores/servlet/producte/10001/-1/10001/140024/377%20710/0/faucet/Primary%20Search/mode%20matchallpartial/0/0?N=377%20710&Ne=0&Ntt=faucet&Ntk=Primary%20Search&Ntx=mode%20matchallpartial&Nao=0&Ns=0&keyword=faucet&isLTokenURL=true&storeNum=11&subdeptNum=27&classNum=298

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.