Second bilge pump

[Limey Linda]

I want to fit a second bilge pump. The existing oneis plumbed to a thru. hull fittingabout 6 inches above the waterline at the stern. There is no easy way of installing another one in a similar location. I remember seing a photo on here of the plumbing going up and over the transom. Anyone done this and have any tips.
Thanks.

[Polwart]

Originally Posted by Limey Linda

I remember seing a photo on here of the plumbing going up and over the transom. Anyone done this and have any tips.
Thanks.

Linda - I think thats how most people have theirs done. Jono Garton posted a very "bling" one recently with stainless (?) pipwork. I suspect most people just use pvc tubing.

mdt on here has a nice feature on his where the end of the outlet points upwards - so you can easily check when it is working without leaving the console (when its on there is a fountain 3 feet above the transom).

[Ezgoing]

Linda

I had such an arrangement on the last boat. It worked perfectly. You just need a few stainless clips to guide the outlet pipe up and over the transom.

Best of luck.

[Limey Linda]

What do I use to get the outlet up thru. the deck? a conventional thru hull fitting?. My access to the bilge is only a 9inch dia. hatch so being able to get both pumps out for repair etc. is going to be a problem.

[martini]

I've got a pipe welded thru my deck, problem is i've only got 1 and its 1.5", either I need a step down fitting or a rather large expensive pump

I wonder if I can get a Y piece to connect two pumps to the same fitting

[Limey Linda]

Originally Posted by martini

I've got a pipe welded thru my deck, problem is i've only got 1 and its 1.5", either I need a step down fitting or a rather large expensive pump

I wonder if I can get a Y piece to connect two pumps to the same fitting

If I am reading you right: you cannot connect two pumps to the same outlet unless you put a check valve ( one way) in each pump output hose. If one is off or fails you will pump water back thru. the dead pump into the bilge. This is exactly my problem and why I am going for an additional outlet. Check valves are notoriusly unreliable. Trust me I have replaced 100's in the swimming pool repair business. You can make a Y fitting with PVC pipe fittings
as follows: T fitting with pipe stub and connect two 45 degree fittings to the arms of the T, with pipe stubs. The best flex. hose to use is a product called Spaflex