we have reinforced transparent hoses
I will check them again when we get to the boat to see if the level is good in it
I will check them again when we get to the boat to see if the level is good in it
Check valve???
- Thread starter fred1diver
- Start date
Another random thought, but somewhat related: Put your phone number in a visible place at the helm so a good samaritan (or authorities) can reach you if there’s an emergency while you’re away. Also, allow a means for non-forced entry, such as combination lock or hidden key.
Transparent hose, even with fiber reinforcement, is not recommended for below waterline use and engine intakes. Rather than adding a check valve a much better use of your time and money would be to replace that with reinforced black rubber hose rather than the transparent hose usually made of PVC.
Not rated for below waterline use. If it fails, the insurance company can easily say that is on you.
It can be clear. Engine intake hose should be wire reinforced to withstand a vacuum without collapse. I see nothing wrong with using something like this for below waterline use. I use it on my boat Amazon.com
Your boat, your choice. On our boat we use this type of hose for maximum dependability, especially below the waterline. https://defender.com/en_us/trident-250-100-flex-marine-wet-exhaust-and-water-hose
Once again proving that great minds think alike. That is what I replaced our original water intake to the engine with. Hose looks as tough as a tank.
On the “closing the thru hulls” issue, I say close them when off the boat. When you are on the boat (sailing or living aboard), you would know if you had A hose failure. Not so much if you are home or elsewhere.
I didn’t always do that, but when I found a rotted hose u def my galley sink, that could have flooded my boat, I started closing the thru hulls religiously.
Greg
I didn’t always do that, but when I found a rotted hose u def my galley sink, that could have flooded my boat, I started closing the thru hulls religiously.
Greg
I dont know. Old, but I owned the boat for about 8 years when I found that hose. It looked ok from the front, but the backside was terrible.
Greg
Any hose I have in my boat that could sink my boat if it breaks is inspected at least every year and changed at the first indication of any kind of deterioration.
Hoses are cheap compared to what happens if one breaks.
When I re-did all my thru-hulls, I also redesigned where some were located specifically for access. So all current hoses ( that can sink my boat) are easily accessed, inspected, and changed if needed.
dj
Hoses are cheap compared to what happens if one breaks.
When I re-did all my thru-hulls, I also redesigned where some were located specifically for access. So all current hoses ( that can sink my boat) are easily accessed, inspected, and changed if needed.
dj
Trident #147 is clear and can be used for drains below the waterline. Easier to install than the wire reinforced hose used on below the waterline suction side of pumps.
tridentmarine.com
Trident Trident VAC XHD Bilge & Live Well Hose - #147 -
Smooth extra heavy wall vinyl hose. 147 is all clear (FDA) with black helix. Read More →
Ok, so I found the issue, I had the wrong gasket in the pump which was allowing water to go back down, installed the right one and no issues anymore
Air leaks are almost always the culprit of losing prime, and the cover seal or worn pump is often the issue. However, I'll just share this: On our previous boat, we had a genset mounted well above the waterline, with its raw water intake 20' away. It would randomly lose prime, maybe 1 out of 5 uses, and burn impellers. Nothing I did helped. I hypothesize that the impeller can stop in such a way that it opens an air path from the antisyphon loop to the intake. Or maybe once the impeller wears just a little bit it can't hold pressure. It wouldn't take much to slowly drain the prime.
So I installed a flapper-type check valve in the intake, mounted vertically so the water pressure on the output side held the flapper closed. Worked a charm, never had any problem with it for the 8yrs after we had the boat, and it is still installed today AFAIK.
Mark
So I installed a flapper-type check valve in the intake, mounted vertically so the water pressure on the output side held the flapper closed. Worked a charm, never had any problem with it for the 8yrs after we had the boat, and it is still installed today AFAIK.
Mark