I replaced a 2.8 gpm 45 psi ShurFlow Diaphragm with a SeaFlow 5.5 gpm 60 psi unit. The original pump was corroded and spraying water all over the engine compartment from the pump seal. I also replaced the manual foot pump in the galley with a new Whale Gusher unit (same as the unit it replaced). Now when I turn on the water in the head, the pump cycles correctly and provides adequate pressure. However, when I turn on the galley faucet, the water trickles out and the pulses. Water also comes out of the foot pump faucet each time the pump cycles off.
I read through Christian’s thread (https://ericsonyachts.org/ie/threads/accumulator-question.16709/) and thought it might be a block in the tank vent and a clogged mixing valve in the galley faucet. I’m thinking the blocked vent and mixing valve is creating a negative pressure large enough to pull the foot pump diaphragm and when the pump cycles off, the diaphragm returns to neutral which is forcing the water out. Before I head down to the boat again to check it out, I wanted to run it past the experts to see if there’s anything else I should look at that could be causing this. If it is an issue with the mixing valve in the faucet, does anyone know where to look for a replacement?
The foot pump is teed off the main line a few feet before the pump. I don’t have an accumulator tank installed yet. The outlet of the pump goes to a few fittings that distributes the pressure to the hot water tank and cold water lines to the galley and head.
I read through Christian’s thread (https://ericsonyachts.org/ie/threads/accumulator-question.16709/) and thought it might be a block in the tank vent and a clogged mixing valve in the galley faucet. I’m thinking the blocked vent and mixing valve is creating a negative pressure large enough to pull the foot pump diaphragm and when the pump cycles off, the diaphragm returns to neutral which is forcing the water out. Before I head down to the boat again to check it out, I wanted to run it past the experts to see if there’s anything else I should look at that could be causing this. If it is an issue with the mixing valve in the faucet, does anyone know where to look for a replacement?
The foot pump is teed off the main line a few feet before the pump. I don’t have an accumulator tank installed yet. The outlet of the pump goes to a few fittings that distributes the pressure to the hot water tank and cold water lines to the galley and head.