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I ordered a bucket full of InTheSwim chlorine tablets. I've used other brands before without this problem, but these guys seem to be incredibly reactive to the skin. Each tablet is enclosed in plastic, but when opened, the slightest amount of dust that gets into the air vigorously inflames the...

Thanks - will do (as soon as the sun shows up). Won't the level sensor (float?) need to be close or in the pool loop?

The pool has three or four pair of those returns as well. The produce fairly strong jets of water that promote mixing. I don't recall ever feeling water coming out of the ones in the pictures, but when the water temperature get above 50° or so, I'll jump in the pool and try to detect flow.

Thanks Allen: Here are pics. The pool is obviously "seasoned" or "mature". (Trying to avoid the word "old".) There is one and only one cover adjacent to the pool and it is for the skimmer. Appreciate you comments.

I know I've got one because I've watched the pool fill back to a set level whenever I drain water from the pool. The problem is now it's slowly filling above the set point leading me to believe the fill valve has a slow leak, i.e., it's not properly closing.

I'm pretty familiar with the types and operation of control systems. However, I don't have clue what kind my pool has or where it might be hiding. I'm guessing it has some type of ball-float level control, but I don't know where it is. Any suggestions on where to start my search? What are the...

The question of variable speed pumps intrigues me because on the surface, it doesn't make a lot of sense. I'd say I'm not an engineer, but actually I am an engineer. Yet I still don't understand. Help with out with an explanation or a reference to an explanation. I understand that pump curves...

Very helpful. Thanks.

Thanks. I'm in agreement and do take steps to lower the pH. My question is "What contributes to pool water reaching high pH levels?" Cheers.

What are the factors that cause pool water to end up with a high pH. I'm in Arizona (yes, it's hotter than [never would have dreamed that was a "curse" word, especially in view of the fact that my brother lives in [curse word] Michigan.]) with an 17,000 gallon IG pool (fresh water, sand filter)...

CYA is no doubt running high. I would expect a commercial shock formulation to anticipate that problem, but I'll pay closer attention to it in the future. Thanks for the comments.

In this instance, I used CLOROX brand "Pool and Spa Shock PLUS". Sodium dicloro-s.triazinetrione. Free chlorine is 20 to 25 ppm.

I've been caring for my pool water for a couple of years. It's normally so clear, you have to look twice to be sure there's water in the pool. However, when it rains heavily, the pool takes a hit. About three weeks ago, I had an algae bloom - not too bad - but bad enough. The chlorine level was...

Are there any simple, but effective temperature monitoring devices that provide a remote readout capability, i.e., wireless or "magic"?

Thanks for the responses. I guess I should turn it off in the winter months. The water's cool enough.

I have a pool cleaner. The filtered water is returned via jets near the surface at the pool corners. But the system also include a spray of water onto the surface (see the picture). If it was a sewage pond, the spray would be for aeration. If it were a diving pool, it would be so divers could...

Thanks - that confirms my fear. Based on a diagram I stumbled on at the Hayward site, the laterals are hinged, presumably to allow the assembly to be put through the small opening. It looks like one was left in the up position. Chances are this thing hasn't worked for twenty-years. Now the...

I'm a relatively new owner of a relatively old pool. It has a Haywood Pro series - S311SX sand filter. I finally let the pool guy that came with the house go so he could expand his horizons on someone else's pool. I replaced the pressure gauge on the sand filter and it never changes. Always 18...

In the chemistry labs, a "scoop" was always a "level" spoon or scoop. Off the top of my head, adding much more would skew the results, but I'm just a newbie myself. I'd be immensely curious to see if you get the same results running the test with two level scoops and then running it again with...

I've got a 16,000 gallon pool, sand filter and vacuum system working off a 1½ hp pump at 3,450 rpm. The guy at the pool equipment store said the rule of thumb is to run it for one hour per 10 degrees of temperature, e.g., 100° day - run it for 10 hours. Does you thumb look like his? Any other...

Thanks to all who have weighed in on this topic in a perhaps seemingly futile attempt to educate me. I think you have succeeded. To make sure, let me state it simply and see if anyone disagrees. 1. A typical pool calls for two functions that require a pump, vacuuming and filtration. Pump...

OK, I see where you're going with this. It does take more energy to pump the water to a higher pressure (head) which is required to increase the flow, however, if we use the approximations presented with the affinity laws and the decrease in motor efficiency and assume you get roughly double the...

Thanks, but with all due respects, I'm not sure the ¼ power consumption at half the speed is a "fact". I see you're from Tucson. Coincidentally, that's where I did my Ph.D. studies in Chemical Engineering. I think if you're using ¼ power at half speed, the pump isn't sized properly. I would...

I'm relatively new to the pool world and it seems everyone from my barber to the baker insists a variable speed pump is much more cost effective. However, given my simplistic reasoning, it doesn't make a lick of sense. Please help. Assuming the purpose of pumping the water through a filter is...