Recent content by Nubo

Couple of notes 1 - The light I use puts out a lot of light. About 120 lumens from its single LED, which is about double what you'd get out of a good standard "maglite". This is quite different than the multi-LED light in your picture which I'd guess is probably putting out less than 10...

I use a small adjustable LED flashlight that runs off a single AA battery. These type of flashlight produce surprising amounts of light these days. Since I use the light for lots of different stuff (bicycle headlight for example), it's always at hand and I have a supply of rechargeable...

Heat transfer is proportional to the difference in temperature. If your pool is over 90, your daytime ambient temperatures are probably too warm to be of much benefit even in the shade. By far bulk of cooling would still happen when the sun is down or quite low in the sky. So to me it would...

In terms of adding weight, Tungsten is about twice as dense as Lead, and factoring the buoyancy of water the advantage will be even greater. Plus it's non-toxic. Also, your bag of shot also probably contains air unless you flooded it before sealing. A cheaper alternative to Tungsten, but...

To update -- I finally did get the new Intex pump; hooked it up, and guess what? No flow. :grrrr: Apparently the increased gph of this model may have more to do with the larger diameter inlets/outlets than with PSI (which Intex doesn't provide). Oh well, one last thing to try -- thanks for...

Thanks mas985, I notice you are geographically nearby, and are using solar panels at about 65% area. What length of pool season are you getting?

Funny; standing in the Home Depot, I figured I'd splurge and "overbuild" the thing with 1" pipe! :oops: :lol:

I figured I'd drop in on a local pool store, figuring they'd have a wide array of pumps to look at. Well, first they tried to sell me a 1 1/2 horsepower pump! When I suggested I really didn't want to overpressurize my solar panels and waste electricity in the process, they told me they could...

mmm... it's a pretty basic unit, no pressure indicators. The flexible connection from the output side of the pump to the pvc does seem to take on some pressure. I disconnect the flexibile coupling from the first panel and get a flow, but not that impressive. With the return line connected to...

Well, I installed my SunHeater panels on the roof. These are 2 2x20 panels with one-way flow (costco kit different that what's on their website). The highest point of the panels is about 16 feet above ground level. The plumbing from the pool runs about 50 feet to the riser, through the...

Sunheater appears to have different styles. The AG versions they have on their website appear to have the "out and back" design on a per-panel basis. This is what I was expecting to receive, as I ordered an above-ground kit from Costco (model 425C), and I was planning on a parallel...

Just a newbie here, so take that into account... But I've got to say this looks a lot like our pool did a couple of weeks ago. Actually, ours was darker, but after the addition of bleach it brightened up and on day2 was a pretty good match for those photos. Absent a sufficient test kit at the...

Thanks JohnT, Yeah, Newton's Law of Cooling made me think about parallel, just wondering if it had much practical significance. I've ordered a couple of SunHeater panels so will be installing soon. Since these will be on my roof and one will be higher than the other, I figure I'll install a...

If installing multiple panels, is there any significant advantage to hooking them up in parallel, rather than serially?

Thanks fpm, I think I counted 8 bottles of various sizes in our recycle bin. Now that I know my numbers, I can use the calculator :) We're in Vallejo, CA. we've got a bit more warm weather and I'm considering some solar to extend. I would like to make the season as long as possible...