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- richiemcb commented on richiemcb's instructable HillBilly Hot Tub - More Power!2 years ago
- richiemcb favorited Hot Tub Projects by Sam DeRose6 years ago
I use a bilge pump for boats - lots of them avaialble - it is not doing much just ensuring some flow from the tub to the coil. Its designed to run continuously for boats so dont see any issue here. Heating time for me is 2 - 3 hours but will depend on your pool size etc.