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Yes. I would say that we went through the same "over attention" drill that is common with first-time spa owners ... trying to acheive a balance between proper ph and proper total alkalinity, but once we got turned on to the "Hamilton Index" (slightly higher pH, lower bromine) we have had great success with relatively fewer chemicals. The only chemical disaster that we had in the early months of ownership was trying "pH-Balance" from Leisure Time. Whatever crap this stuff was caused absolutely ALL "total disolved solids" to "flock" out ... the water looked like a white-out snowstorm of baking-soda water. We'll never try that junk again! SD .

Roger, thank you very much for the detailed help. Based on your advice in this post, coupled with the abrasive noise the pump was making when it went out, I decided to assume impeller damage and ordered the entire wet end from Hydro-Spa (now "Premium Leisure, LLC). The part came in at $52, and if it turns out to be just the seals, I'll save my old core for the next one that goes out. My leaking unit is directly behind the control box, so instead of trying to fight it stretched out in limited space from the side that is to the right of there, I am just going to remove what I have to in order to remove the pump from the closest access door. Am I ever glad this is not a "full-foam" tub! Thank you again for the detailed advice! We have been very happy with this tub despite a lot of the negative reports here. The pressure out of the jets as produced by the two 5hp motors is something we were not able to find wet-testing lesser-powered tubs. Regards, SD .

Our Hydro-Spa Z60 (9/2005) uses two 5hp pumps for jets and a single 1hp pump fpr "turbo air injection" (air-only jets). Filtration is provided by one of the 5hp pumps running at low speed on a user-set schedule. This pump has developed a serious leak that can be observed at the point where the motor armature enters the plastic pump impeller housing. 1. Is impeller/housing/seal replacement an easier repair than attempting disassembly of the existing impeller/housing to replace just the seal? Thanks! SD .