hi
I used to have a covered Nylon deck filler (see below), original to the 30 year old boat. I then noticed a stack of water in my tank which must have been coming in through the deck the filler. Think O ring or surface of filler must have been sub optimal.



I have replaced it with this SS one (see below), but am now wondering if I should have gone with a covered one (see very bottom pick). Has anyone got first hand experience about which would be best.

cisco said..
It may not have been a leaky deck filler at all.

If a fuel tank is left only partially full without use for extended periods it will build up condensation in the tank which will precipitate and fall to the bottom of the tank.

I have seen a fuel tank that was full, top half being fuel and the bottom half being water.

Now that you have had water in the tank it is recommended that you completely drain the tank and decant the fuel off the top of the water.

yes, have heard of condensation issues before. The reason I thought it was a leak in this case was that there was soo much water that it had filled the water drainage section at the bottom of tank and had filled the glass water trap just before the motor.

Mines in the cock pit floor I'm not over keen with its placement to be honest. easily contamination problem stainless steel with O ring but has to be cleaned before opening and also after carefully . Its on my list to move
I may even move it to inside the companion way if I can find a suitable postion