Replacement Water Inlet Cap with Gasket Or Seal

Updated 05/06/2021 | Published 05/04/2021

Question:

Is there any standard gravity fill cap that is sized to accommodate a gasket or has one built in? I am confused as to why it is so hard to find one with a gasket to prevent any outside water from seeping in and potentially contaminating the fresh water. I did purchase a gasket last season that was the right diameter for my current cap, but it ended up being too thick to allow the cap to close.

asked by: Jerry W

Expert Reply:

I'm not sure of the exact reason why some of these don't have gaskets and I'm not aware of any reason why they don't include them; none of the caps we carry come with an actual gasket but there are some options that provide a better seal than others. I recommend checking out the Replacement RV Gravity Fill Spout with Plastic Cap - Black # 372222-224BK-A, which doesn't have a gasket but does create a seal on your spout using screw in fittings that will keep debris and outside water from getting into your fresh water.

This spout hooks up to 1-1/4" or 1-3/8" water lines and is going to be the best solution I'm aware of for this problem.

expert reply by: Erik B