I think this was bad for my pool. water dropped quicker than it had all summer.

It’s great for maintaining and keeping the heat in as well as the chlorine.

Don't waste your money, does not work. Directions said to puncture solar pill and put it in the filter basket, remove after 24 hours. Well, after 24 hours there was still lots of liquid inside the solar pill. We put it back. After another 24 hours, we shook the remainder of the liquid out. It did nothing. We ended up having to put the regular solar blanket on the pool. Waste of money! Wish I had saved the pill and packaging for return!

The product works great. We dispensed the product just a shown. After 48hrs it wasn’t all gone so we shook the rest out but that was due to us having a handle on our skimmer so it wasn’t able to move properly in the skimmer. After about 4 days we saw about a 8 degree increase in the temperature. Ran the pool on “circulate” only. It worked great lasted about 3weeks which wasn’t as long as I was hoping for but it did work. I would definitely buy again just wish it was cheaper for the length of time it worked for us.

Seems to be holding temperature it took almost 3 days to empty out from the skimmer. Not the 8 hours it said to leave there. It was still pretty full. I even tried making sure the hole was punctured and it was. Shaking it did release some of the contents but as I said, took almost 3 full days.

Solar pill - after my winter pill did a good job keeping my water quality good, I tried to get a spring and summer pill. I was able to get the spring but the summer pills seem to have disappeared. So I got a Solar pill! Honestly it’s done a great job raising the temp in the pool and eliminating it evaporating. It also though adds a film that will keep insects from being able to take off out of the pool. So make sure you have your filter running lol

A guy at the pool store talked me into trying one of these Solar Pills when I told him I had to buy a new solar cover and I complained what a pain in my butt it is to constantly put on and take off the solar cover. He sold me a Solar Pill for $20 and told me he would refund my money if it didn't work or I didn't like it.It works as advertised and I can buy then for $16 on Amazon.The Solar Pill holds in heat but doesn't do much to collect it. I bought a much smaller and lighter solar cover that covers about 2/3 of the area of my pool and use the Solar Pill in conjunction with it. When the water reaches about 75* I put the solar cover away.IMPORTANT NOTE: I live in Maine where 50*F days next to 80*F days are common.

A pool's temperature is dependent on numerous factors, including air temp, wind and amount of sunlight. So if you drop this in your pool and see the water temperature increase over the next few days, it's hard to know how much is due to this product, and how much is due to favorable weather. For a valid test, you'd need two identical pools, put the Solarpill in one, and compare the difference over the next few days. Since I don't have two pools, I tried the next best thing...I filled two 20 gallon plastic tubs with pool water (so they'd have the same concentration of chlorine, etc). Then I put some (too much) of the Solarpill juice in only one. I measured the temperature over the next few days and did see that the Solarpill tub was consistently 1 or 2 degrees Fahrenheit warmer (the difference varied as overall daytime/nighttime temperatures changed). However, for this test I had intentionally put way too much Solarpill juice in that tub, so the concentration was way higher than you get when used properly in a full-size pool (per directions, up to 30,000 gallons). In fact, the concentration was so high in the tub that it became cloudy in spots after settling overnight. (I've never observed any cloudiness with the lower concentrations it achieves in a pool.)My next test was to use a concentration closer to that of the pool (the pool had gotten the full Solarpill treatment a few days earlier). So I dumped out the Solarpill tub and then refilled it with pool water. Now this step is tricky and error-prone because the chemical floats on the surface, so the goal is to fill the tub while capturing the right amount of surface water (chemicals) and not letting the surface (chemicals) drain out as you remove it from the pool. I did this as carefully as I could and again measured the temperatures between the two tubs over the next few days. This time I saw no measurable difference between the temperature of the two tubs.CONCLUSION: The concentration affects the effectiveness. At recommended concentrations, you might see a slight increase, but I suspect it won't be more than a degree or so.So by using this product, there should be some savings in water bills (due to reduced evaporation) and in heating costs, but it's hard to calculate if that savings outweighs the cost of the Solarpill.Note: this was clearly not a pure scientific test for several reasons, including: No good method to measure/approximate concentration. The tubs contain much less water than a pool, so amount of day/night temperature variation is much larger. The tub walls are a very different material than pool walls (may affect how much the sun warms them), and the walls are surrounded by air, not dirt (affects heat loss through walls). Perhaps most importantly, the tubs are much shallower than the pool, however their surface-area to depth ratio is far less (thus the evaporation effects that the Solarpill relies on may be less). If I were to do this experiment again, I'd find two containers that are very wide and shallow to mimic more closely the surface-area to depth ratio of a pool.