Recent content by Gary Davis

I had thought about that, but I discounted it because, in the summer, the spa warms up, so there isn't any "heat loss" during the day. I forget the actual temperature rise I documented last summer where I had this 120VAC pump running this rig (i.e., not solar powered and not battery powered)...

I'm trying to figure out how to build a Rube Goldberg inexpensive but functional DIY solar-powered recirculating spa heater for my 500-gallon spa. My idea is to re-circulate the spa water through a few hundred feet of black rubber 5/8th's diameter garden hose (which I already own) for about six...

Repaired the second leak using the tape. First I located the leak and let the hose dry after marking the location of the pinhole leak. Then I wrapped the thick tape around the hose, where the tape is much thicker than electrical tape. Since the tape isn't all that sticky (instructions say to...

Thanks. It's green. And dusty. And not in colonies. Not in the water. Only on the bottom. And sides. Very poofy. Very light. It made it past the Polaris 380 vacuum. But not the manual floor pole vacuum. Never used pucks. Only use HASA liquid. I add 30 ppm CYA to the fill water, which means the...

Thanks for that advice (and pointer to a threaded 1-1/2" spiral hose cuff). I had an old hose which I pulled the cuff off of. There are no threads unfortunately. I think it may have been glued on, but there's no evidence of glue. Still, I appreciate the suggestion as for one hose (with the...

I guess it has to be algae, as what else could it be since it just showed up while I was gone. But it's not in the water (unless I stir it up - and then you can't see the bottom). This stuff is NOT sticky. Not at all. It just coats everything with a super fine dust. As you noted I only use...

I'm familiar with "Gorilla Glue" but not "Gorilla Tape", which I will google to see what it is. <Reviews for Gorilla 10 ft. Waterproof Patch and Seal Tape Black | Pg 1 - The Home Depot> Looks like I can pick it up at Home Depot. Thanks. I wasn't aware the cuff could be moved. In one hose the...