CP 23 water tank ideas

[asuserkey]

I purchased a 1987 CP23 two years ago have some questions about the water hookup for the sink. The sink is there but there was no tank installed in the boat when I purchased it, and I have been debating with myself as to whether I want to bother putting one in. Does anyone have any suggestions or comments about this?
Also, I am wondering where the drain typically goes. On my boat there are no pipes connected for the drain.

I have sailed a CP19 on Lake Nockamixon (Pa) for abut 7 years and then moved up to a 23. Last year I was just on Nockamixon but am planning on taking her down to the Chesapeake this next summer so living aboard will require a bit more prep. than just the daysailing.

Dave

[crazycarl]

I have very little knowledge when it comes to the 23, but I installed a water tank in my 19. I cut out some of the foam under the cockpit and installed it just aft where the head sits. I bought the tank online 16+ years ago from a place that makes them in house. Maybe a google search will turn something up.

[SJMason]

Is there a water fill cap on the deck near the bow?  Perhaps someone removed the tank and filler cap?  The 23-4 has the fill point in this area with the tank under the v-berth.

[brackish]

My 2005 23IV has a fill cap starboard side forward that leads to a tank that is under the starboard side v-berth just forward of the cabin bulkhead, then a line to the pull out sink also on starboard side.  The drain is at the sink push back position just above the waterline.  One of the best things I did was replace the hand pump on the sink with a 12V pump, accumulator, filter and a new faucet.  I had a spare breaker in the panel to do this.  I also, at that time, installed a valve on the back side of the bulkhead between the cockpit locker and cabin for a wash down hose.  So now no more bursitis flair ups pumping that darn stock pump that was leaking anyway.  The parts to do the pressure water system didn't cost but about a hundred bucks more that the repair parts for the old pump.  Money well spent. There is an old post with pictures on this forum, if you can't find it I'll make up a google album and make it open share when I get a chance.

I might add that the boat came from the yard new without a seacock on the sink drain line.  I know it is above the waterline, but still, if on a heel to starboard it was underwater and rough seas could cause it to "pump" back to the sink, certainly not a good thing.  I added the valve when I did the rest of the work.

 
 

[asuserkey]

Thanks Brackish
My 23 is an MKII, but does have a fill cap and I do see the compartment that I assume previously held the tank, although there is none there at present. There is a tube back from this compartment to the area of the sink. I assume from your description that there is a thru-hull drain on the starboard side above the water line, but I do not have any such drain. I am wondering if the sink was set up to drain into the bilge, although I am not a fan of that solution.
The idea of a pump sounds great. I did find other threads but any of the links to the pictures or details were not active any more - so if you could provide some details I would really appreciate it.

Thanks
Dave

[brackish]

The first pic is the original installation of the pump and filter before I added the accumulator. The second is the accumulator added, it helped keep the pressure/volume constant.  The third is the hose bib I installed just behind the bulkhead where the pump is located.  The fourth is the new faucet on the sink.  I got it from a RV place, same as marine only much less cost because it did no have marine in its title.  I did this about 12 years ago and may have some info on part numbers in my file if I kept receipts, let me know and I'll look.

and I have no idea why my pics often show up twice when I hit insert.

[brackish]

And having pressure water really helps when winterizing.  I used to have to pump out the tank manually to put in anti freeze, but no more.

[asuserkey]

thanks for the pictures - they are really helpful.
One question (so far) Where in the boat did you put the pump?

[brackish]

thanks for the pictures - they are really helpful.
One question (so far) Where in the boat did you put the pump?

In the far back of the starboard main cabin berth. The stained wood you see behind it is the bulkhead that separates the main cabin from the cockpit locker, that on my 23 is also the battery compartment.  The hose that comes up from the gray painted surface is coming through that berth well past were the berth cushion ends. That hose originates from the tank which is located at the back of the starboard v-berth, so the hose first has to go through the bulkhead that separates the v-berth from the main cabin, then runs under the cabin berth to the filter/pump.  The tank on mine is an 11 gallon polymer tank. I put a T-fitting past the accumulator to feed both the sink faucet and the quarter turn valve that feeds the washdown hose.  When I did this I replaced all the original hose which was cheap and failing on a fairly new boat.

[passagesfromtheheart]

Hi, everyone ~ My input may be moot at this point, but on my 2013 23 MKIV, my fill is also on the starboard deck, near the bow, and the tank is also under the starboard side of the v-berth (which is where it was on my 25 as well). I have no through-hull fitting/seacock for the sink on my 23, which is also a slide-out sink located on the starboard side where a quarter berth would be. When I got my boat from Keith Scott of The Sailboat Company, out of Richlands, NC, I had inquired about where my sink drained (as there was no through-hull). Keith told me it drained into the bilge. As I only daysail (and bring drinks and hand-wipes), I have to say that I've never filled my water tank and therefore have also never used the sink to see if this is the case. Nor have I followed the drain lines from the sink to confirm they do in fact drain to the bilge. There are two hoses in the bilge of my boat that I can see -- see attached pic. I'm assuming one must be for the sink and the other for pumping out the water in the bilge?

[asuserkey]

All sounds good and I think that something similar will work great for me. I will have to ponder how I want to drain. I haven't checked the relative heights but wonder if I could use one of the lower cockpit drains to run a hose out.
I was looking at a 14-17 gal. flexible tank. With an 11 gal tank I imagine you have to be careful with water usage. It could all be gone in a matter of minutes otherwise.
The previous owner of my boat had moved the battery up to a compartment in the center under the v-berth. There is a bank of two batteries and he connected them through a Blue Sea charging system. It all works fine but I have not yet traced all the connections to the point that I understand exactly how and why it is connected as it is. The water tank hoses do go into the compartment to the starboard side which I believe is the same as yours.

[asuserkey]

Thanks for the picture of your 2013 MKIV. I believe that this is exactly the way my boat was set up originally even though it is an MKII.
I am always interested as it seems as though there were many configurations of these features, not necessarily tied to a particular model. I had the two tubes into the bilge also, but was not sure where the one got connected, but seeing your comments I think that this is the sink drain line as you describe.
I am not going to keep it this way, but not really inclined to put a thru-hull fitting, so I'll have to see.
Dave

[brackish]

I was looking at a 14-17 gal. flexible tank. With an 11 gal tank I imagine you have to be careful with water usage. It could all be gone in a matter of minutes otherwise.

I built a small platform that fits in the open area at the bulkhead between the main cabin and forward v-berth, starboard side.  On that platform I have a gallon and a half jug that has a petcock on it.  It is used for drinking water, we never use the sink water.  Additionally I built a pull out drawer with custom ice chest under the cabin entrance and we put additional water in there sometimes frozen.  We don't put ice in there, use those 18 F freezer packs because I purposely didn't put a drain in the ice box, only place to go would be the bilge and I didn't want to do that.  So we have never run out of water with the 11 gallon, but we only go out for 1-4 days at a time.  There is also an old post about the building of the ice box.