water pump
When I first installed a WP on my Yamaha, it was pumping great,then went down to a trickle. I pulled the lower unit off ran down to show the Yamaha Tech and he said nothing was wrong. Reinstalled the lower unit, put on the ear muffs turned on the faucet, pumped good and started to loose presure again. Turned out my wife was doing a load of wash in the washing machine.
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