Sanitary hoses

[Peggie Hall HeadMistress]

Anywhere you can use PVC pipe, you will be better off than hose. If you have straight runs, make it PVC. You can get PVC pipe to hose barbs for transitions. Don't use 90* elbows, but if you can make turns with 30-45* elbows, or a couple of them in series, then use those. If you have runs that you can't get pipe into, then use couplers on shorter sections.

You need to "soft couple" pvc pipe to anything rigid (toilet, tank, thru-hull etc) using about a foot of hose to have a connection that won't leak. Hard pipe couplers will.

And while I have the floor...None of y'all know how to do the rag test on hoses correctly. You need to use hot wet rags and they' only need to remain on the hoses till the rags cool.

Use a separate clean rag for every section of hose. Wet each rag in HOT water--as hot as you can handle...wring it out and wrap it around a section of hose. Repeat, repeat till all sections of hose have been wrapped.When all rags have cooled, remove one at a time and smell it. If you can't smell ANY thing on that rag, that section hasn't permeated...if you can, it has. No odor doesn't guarantee tjat any section of hose is worth keeping, though...age matters too. Because rubber and plastics dry out over time, becoming hard, brittle and prone to cracking and splitting...making 10 years the average working life of any hose. So even if they don't stink, it's a good idea to start thinking about replacing any hoses that are over 8 years old.

--Peggie

--Peggie

 

[colemj]

You need to "soft couple" pvc pipe to anything rigid (toilet, tank, thru-hull etc) using about a foot of hose to have a connection that won't leak. Hard pipe couplers will.

That is one of the purposes of the pipe-barb couplers in a run. Use PVC pipe everywhere you can, and couple in short pieces of hose where you cannot.

 

[BigEasy]

That is one of the purposes of the pipe-barb couplers in a run. Use PVC pipe everywhere you can, and couple in short pieces of hose where you cannot.

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Got to wonder why boat manufacturers don’t do this during assembly. Cost of PVC is a fraction of the cost of quality sanitation hose. Trident sanitation hose was initially used on Beneteau builds. Simple to install before cabinetry placement. Perhaps labor costs offset the hose /PVC savings.

 

[colemj]

Got to wonder why boat manufacturers don’t do this during assembly. Cost of PVC is a fraction of the cost of quality sanitation hose. Trident sanitation hose was initially used on Beneteau builds. Simple to install before cabinetry placement. Perhaps labor costs offset the hose /PVC savings.

Yes, labor cost. It takes time to run PVC pipe on smaller boats (all of ours), even without the cabinets in place. Builders also get quite a discount buying the hose in bulk quantities.

Large boats (none of ours) are plumbed with PVC pipe, not hose, because that is both easier and cheaper.

Mark