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Go Back   SailNet Community > On Board > Gear & Maintenance > Installing a traditional head from scratch
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Thread: Installing a traditional head from scratch Reply to Thread
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Topic Review (Newest First)
01-16-2013 08:52 PM
Minnewaska
Re: Installing a traditional head from scratch

Quote:
Originally Posted by capta View Post
Just a note; if you have a cored hull and are going to add a seacock underwater, you should dig out an inch or so of core around the hole for the seacock and fill it w/ epoxy filler so you can tighten the seacock without crushing the core.
Bedding with epoxy is a smart way to prevent water penetration into the core, but I don't think it is necessary to prevent crushing. Assuming the core is in good condition.
01-16-2013 03:24 PM
capta
Re: Installing a traditional head from scratch

Just a note; if you have a cored hull and are going to add a seacock underwater, you should dig out an inch or so of core around the hole for the seacock and fill it w/ epoxy filler so you can tighten the seacock without crushing the core.
01-13-2013 01:57 AM
Jgbrown
Re: Installing a traditional head from scratch

Haven't done the actual toilet end, but have now retrofitted a few holding tanks into direct overboard discharging boats.
Total cost of materials was about 800$ IIRC for a small boat, but that included a fancy Jabasco all in one holding tank(Macerator pump, tank level monitor, control pad etc.) Big advantage of that is that it confines everything within a small footprint, and you only have to securely mount one thing.
Often if you scrounge around at West Marine etc and keep an eye out, cut lengths of hose that aren't picked up go up for sale cheap, hose is very expensive at full retail.

If your boat has never had one, I'd think about getting the same size thru-hull as your sink, then you can use the size hose, hose clamps etc, and buy a larger quantity to do a couple projects at once.
01-12-2013 07:03 PM
Minnewaska
Re: Installing a traditional head from scratch

Are you planning to put the holding tank in the hanging locker and pumping up to it? That has the advantage of not needing a pump to dump at sea, but needs good technique to keep the waste line that rises to it clean.
01-12-2013 06:39 PM
TheTardis
Re: Installing a traditional head from scratch

I have attached three photos of the head. You can see that there is a platform and there are previous screw holes. The hanging locker behind is approximately 4'x3' and about a foot deep and tapers to about 6".
01-12-2013 07:09 AM
Minnewaska
Re: Installing a traditional head from scratch

Good advice above. Here's a couple of things to keep in mind.

Get the absolute largest holding tank you can possible jam in. A critical method to prevent odor is to flush sufficient clean water (salt or fresh), after you empty the bowl. That can take a total of 2 or more gallons per flush!! 90% of boaters fail to do this and 90% of marine heads smell.

Secondly, be sure there are no dips in the waste lines that will hold effluent. Keep in mind that the hose will weigh more with water in it, so be sure it wont' dip after you run it. Bracing can help.

Never ever put anything in your tank that you didn't eat.

Run a large vent line, minimum 1 inch. Two is a great idea, but not mandatory.
01-11-2013 11:32 PM
chucklesR
Re: Installing a traditional head from scratch

Alex W,
Spot on post. Thanks.
01-11-2013 11:05 PM
Lake Superior Sailor
Re: Installing a traditional head from scratch

My cal has a vetus bladder holding tank that worried me a first, I have learned to kind of like it now,easy to see how full / empty it is , and relative easy to remove. ... When placing your tank concider what the added weight will do to your water line....Dale
01-11-2013 10:00 PM
TheTardis
Re: Installing a traditional head from scratch

Thank you all for your responses. There is already a platform. I will take pictures tomorrow when I'm at my boat, I agree it would be helpful. there is a locker in the head that a holding tank could fit into. I could also fit it under the v-berth.
01-11-2013 08:41 PM
chef2sail
Re: Installing a traditional head from scratch

Toliet- $200
Hoses- $200- trident green stripe 101 or 102
Holding tank $300- Ronco has many shapes capacities- I owuld go 24 gallons
Thru hull and ball valve-$140
Deck Plate and pump out- $150
I would put a "y" valve and mascerator in case you go in the ocean.- $150

Good recommendations for glassing head platform. Also tank must be secured and held in by framing so it doesnt shift or move at all./
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