bilge pump transom outlet BELOW water line

[dudley]

I think that I have narrowed my water intrusion leak to backflow INTO the boat from the bilge pump discharge hole. This is entirely rhetorical, but WHY in the world would any boat manufacturer put this transom bilge pump outlet BELOW the water line?? I have determined that the port side inlet/discharge hole on my 02 190bay is for the bilge. Anyone know what the other inlet/discharge hole is for? I was told fuel overflow, but I kinda have a hard time believing that, what with the potential for getting water into the fuel system.

My real question to you guys is this: Has anyone put some type of "check valve" into the bilge pump hose line to eliminate water coming back into the bilge of the boat, and if so, where did you get these valves? How succesfull was this installation in solving the problem of water leaking BACK into the bilge. Was your bilge pump powerful enough to pump bilge out through this check valve? And btw, from what I've seen of the bilge pump on my boat, I would think you have to be a chimpanzee with FIVE foot long skinny arms to replace that (NOT AUTOMATIC) bilge pump...what the heck?

[fridaysoff]

Dudley,
I can't imagine a bilge pump discharge under the water line either. Why don't you take a garden hose and run some water in your bilge until the bilge pump starts pumping and see where it comes out. You may be seeing the discharge for the baitwell under the waterline instead. Run some water in your baitwell and see where it comes out. I'm guessing the boat is on a trailer.That makes it easier to find and understand what all the discharge holes are. There is probably another opening that is for your baitwell to take in water to supply itself.That one is below the waterline also. The overflow for the gas is probably the one that is higher up on the transom. Put your nose up against it. You can smell gas sometimes and you will see fumes coming from it when you are fueling the boat.If you have those plastic bilge plugs on your boat you can replace the washer with a good garden hose washer or replace them altogether with brass plugs. They have been the culprits of water intrusion in the past. Good luck.
John D.

[rscott]

Your gas vent should be the highest fitting on the transome aprox. 1" in diameter with what looks like a stainless steel baffle in it. The bilge discharge is right under that same size but no baffle. Bait well intake is on the bottom of the boat about 12" forward of the transom slightly right of center, will be right next to one of the trailer bunks. The baitwell, fishboxes, and floor drains all have large fittings low on the transom, and of course the bilge plug is lowest in the center. The best thing I did to put my mind at ease about my boat was to get in the boat while on the trailer, with bow as high as possible, and put a running garden hose in the port fishbox, starboard fishbox, port floor drain, starboard floor drain, live well, bilge to find the pump discharge, then pull the bilge plug to drain the remaining water from it. Having someone on the ground behind the boat while this is being done will be a big help, better yet let them be in the boat with the hose and you can see where its coming out.
By the way the floor drains are plumbed to opposite side through hull fittings to prevent sharp turns in the flexible hoses.
Roger

[MolarBoater]

This has been discussed in 2 new posts in the past 2 weeks (or searched the 190 forum) and the remedy/flapper scupper has been suggested to me by the factory.

It is very common with Bay 190's (and with almost any sailboat). You should have a loop of bilge discharge hose going above the water line but once the pump cycles off "back siphoning" may occur is the bilge thru hull is below water line. Install a "flapper scupper" over the thru hull.

A Whale check valve would be an idea (duck bill rubber valve in plastic housing) but you would probably have to pull the whole transom deck up to get to everything. Plus, it could slow discharge as well as become clogged. Call Triumph warranty service dept and they or dealer might send you the flapper style....they couldn't be more than $5 from the look of em.

Your boat has some extra weight in the transom, possibly, such as batteries, storage, heavier than design motor (2 stroke), passengers and possibly water in the inner hull which makes the boat ride an inch or two lower. Mine now rides a little higher now my inner hull is dry/crack repaired.

Just read thru all the posts in the Bay 190 forum, the answers should be in there.
Good Luck, Molar

[NCangler]

From the factory:

You can put a check valve inline with that drain, in later models we moved it above the waterline. In most cases the pump will not allow water back into the boat, however in a older pump I can see how this could happen.

[MolarBoater]

Triumph sent me a SeaDog flapper scupper and you will need to cut out a circular piece of starboard to fit around the thru hull fitting so the flap fits flush when mounted to the hull. I have pics in my Members Gallery. Good to hear the newer boats have it higher.....always improving the product.