Vent stacks have been completed , ready to connect to the holding tanks.

I have made some seals to keep bugs and crawlies out of the void between the deck beams.





Epoxy coated marine plywood ring. 9 mm ( 3 /8 ) , rubber gasket and 18 mm ( 3/4 inch ) Plywood top ring make up the seal.

Rubber gasket was cut from from a truck inner tube.




Hole for the tank inlet.



First plywood ring is glued and screwed onto tunnel planking from below.

There are many small things going on that will never be seen on these sorts of projects , such as making simple things like pipe clamps for example.

It took an hour of my time to make thirty of these , but they would have cost $ 90:00 to buy.









One of the two 50 mm ( two inch ) waste water vent pipes coming up through the rear deck ,held in place with my home made  pipe clamps.
All of the under floor plumbing waste pipes are also  fixed to the floor with these . Not fancy , but they do the job.

 

Tanks are bolted under the bridge deck.

The tank can be seen inside the plywood seal ring.
That`s the top of the pipe.



An opening will be cut with the hole saw , then tapped and cemented in place.

It`s all a repeat of the way the end caps were done.

A Ferro - Pre plumber`s putty fillet will be applied , and then the seal will be screwed in place .

Some paint too , to clean up all that mess.






Left pipe runs to the bathroom hand basin , right to the bath P - trap.

The grey googe is silicone sealant .

I will cast a solid silicone plug around the elbow to form a 25 mm ( one inch ) thick rubber seal.




Almost ready for the end caps.

Back to work for me ....

Coming along well. 

Hi Damien .

Cold again here ...... Southerlies are blowing.....

Don`t want to go out there but I have to......

Yeah  same here 6.1c at 9'30am feels like 1.9c springs gone to sleep lol

Joining up the pipe sections.
Primer fluid , solvent cement and plumber`s putty.







I fitted tension straps in the center of each pipe strap .
50 x 3 mm ( 1/8 x 2 inch ) flat bar again.
They are fixed to the deck beams with coach screws , same as the C - channel.

I was not paying attention , square washer should be below the strap not above.
I fixed it , it had been a long day.

Correctly fitted and tightened coach screws that have been backed out should be discarded.





Longer bolts and lock washers needed here.







Bathroom drain threaded , glued , and puttied in place.



The seal is ready to screw down , and the end caps have been fitted .







Pump out outlets , bow end of the boat.

Fitting a new larger sink.

I have coupled together the two waste tanks so that they fill up at the same rate ,
and to minimize pump outs.

I took a 100 mm DWV ( four Inch ) joiner and cut off one of the collars .

Then I sliced it in half.








The rings are cemented onto some 100 mm ( four inch ) pipe to form a sort of socket.




This is then glued into the back of the end cap and an epoxy putty fillet secures it on the inside.



Once the elbow is glued into place the pipe is held secure and captive without fasteners , which would most likely corrode quickly on the inside of the tank.



A short piece of four inch pipe will connect the tanks together.

Stainless steel nylock nuts.





Plumbing in the two inch ( 50 mm ) vent  pipes.

   

Hey Damian... are you getting any of that sudden warmth in weather we are getting here in SA ?