Ampmaster 3000 for closed loop in my 200

[TerryA]

Hi Doug,

I was talking to J&L and they said that the problems with the seals on the Ampmaster had been rectified as of April/02 by implementig a new design. Also mentioned that as long as you didn't get sand into the pump you shouldn't have a leakage problem. Since my use is for a closed loop with the intake only 5" from the surface I shouldn't have a problem with sand damaging or wearing out the seal. However I'm still skeptical about how long the seal will last even without sand intake. I'm thinking that encrustation which occurs over time will eventually wear the seal out anyway.

Was this your deciding factor on going with the Mak 4? What pumps are you currently using if any?