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Our little(about 300 gallon 4 person?) hot tub was probably installed in the 90s before we bought this house. I'm somewhat handy and have done some repairs and modifications in my blind clueless way. (I have Google!) 1. Upgrade to larger cartridge - The old built-in cartridge filter cracked. A...

I am replacing an old Nu-Wave MM-1 spa pack with a new Balboa VS500Z (50-54219-Z). I've identified the high and low speed wires going to the pump. Inside the old controller box, and in the old wiring harness, they are black and red, respectively.) I need to remove the old wiring and install the...