Yes, I agree, it's a great pump, although mine too has had a chronic leaking problem since new. Unfortunately, due to not being used for several years, it has seized up from its own leaks. Where we've been in the Caribbean with mostly sand and coral, it's rare to have enough mud on the chain to need it, and it didn't make much sense to wash salt water off the chain using salt water.
I can't tell yet if it's the pump or the motor that has seized. I removed it, but the stainless steel studs on the rubber mounting bobbins are so rusted from the pump leak, that I can't get them free from the pump base. There's a recommended pump and motor rebuild place here in Ft Lauderdale, and I have a new "rebuild kit" which is essentially just seals and valves. Before I go down the rat hole of spending a lot of money to find out it will cost more to rebuild than replace, I may be better off just buying a new one. I just want to make sure that if I do, it has the capacity to do the job before I buy it.
I forgot to ask on my first post, if anyone knows what amperage the existing pump motor draws, so I can tell if I will need to increase the size of the wiring with a new pump.
s/v Summer Love