05-05-2016, 12:49 PM
(This post was last modified: 05-05-2016, 12:53 PM by Chris Burkard.)
In many cases, the pumps are mounted above the tank level. If that is the case, you may have to use a hose to prime. The easiest thing to do is fill the tank (pumps off and at least one faucet open), then while the water is running out of the deck fitting, cup your hands around it and pressurize for a bit. It should push the water up the lines and into the tank. Don't get creative and over-pressurize, that could blow a line off or break a plastic fitting.
I forgot one thing. Your fresh water has a vent line that goes overboard. It is usually just below or near the on deck water fill fitting down on the hull side. If this vent gets clogged (bugs, debris), it will keep the pumps from being able to pump against the suction created by the clogged vent. You must clear this vent. Sometimes you use a hose to blast the vent from the outside. If this doesn't work, you'll have to find out where that vent line hose is attached to the fitting on the inside, remove the hose and figure out how to clear the blockage.
Good Luck!
I forgot one thing. Your fresh water has a vent line that goes overboard. It is usually just below or near the on deck water fill fitting down on the hull side. If this vent gets clogged (bugs, debris), it will keep the pumps from being able to pump against the suction created by the clogged vent. You must clear this vent. Sometimes you use a hose to blast the vent from the outside. If this doesn't work, you'll have to find out where that vent line hose is attached to the fitting on the inside, remove the hose and figure out how to clear the blockage.
Good Luck!
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