SDS hammer drill

Originally Posted by mike1

Haha. Yea I know I have that effect on people sometimes haha. That ac lot I probably won't see again once in a lifetime thing. Glad your doing sealed units and acs they add up fast the rads are the fastest and easiest part to do and separating the num 1 and num 2 tubes I'll take that stuff hope it helps also been having memory issues back in 2019 since I started my first job I blame 4 yrs of hitch paint exposure with no respirator.

Sewer pumps will be much easier to do I bet. Some maybe aluminum though.

Originally Posted by greytruck

I did mess around with sub pumps since i get 100+ a year from my plumbing contact. Almost all are alum wound. the only ones i found worth messing with are the EverBuilt brand that have a stainless cylinder, or the big green pumps that weigh 50lbs. Those are copper, but on the big green ones you have to break the stator out of the cast iron shell. You will be surprised how small the motor actually is in them, not worth it for the little copper in those. Plus the oil in them stinks and the grossness from most you dont want to be touching or breathing that sewage stink. I just cut the cord and if clean enough, pull the stainless handles and on to the next.

Just guessing, but i think these would more likely be lift station grinder pumps for a septic system. It might not make much of a difference though. Almost all of the fresh water jet pump motors i've seen are aluminum wound.

It may be that aluminum is the preferred choice for certain applications that involve handling water.