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Just want to let you know that that is NOT a vacuum gauge - its a normal pressure gauge. You want a gauge that measures in inches of mercury (in. Hg) and if its in the budget, a liquid filled one (you will regret buying a non-liquid filled vacuum gauge - they are almost impossible to read...

Yeah, its what book you use when you take the CPO (Certified Pool and Spa Operator) course. Its made by the National Swimming Pool Foundation. Are the pressure gauges hard to read because they move around a lot or because they are just old and corroded? If its because they move so much that...

Installing a flowmeter in a residential pool is a little unrealistic because of space limitations. And you cant really just 'take one out to use on the next house' because they are calibrated for a certain pipe size diameter, and on top of that, you need to drill a hole in the pipe and secure...

lol, I too work at a pool store and i love seeing peoples faces when i tell them they have to drain half their pool to lower their 150ppm cya level. they say "oh, well uh, the water level is pretty low now from evaporation so i can just fill it back up a couple inches.." and i tell them "no. you...

Evaporation only takes up pure water, leaving the calcium that was in the pool behind. When you go to refill your pool to the proper water level, the 125 ppm of CH thats in the tap water is going into the pool. Its also possible, but unlikely, that the water is taking the CH out of the plaster...

You can get rid of the inspect cell notification by holding the diagnostic button for 3 seconds. The notification is designed to turn off after i think 300 or 500 hours of use. When it says inspect cell you should take it out and clean it. As for the 100opm difference, the salt cell takes the...

This is correct. The salt cells have a coating of Ruthenium (sometimes Iridium too) on them and it wears off when the salt cell is generating. So naturally when it is at 100% it uses up more of its Ruthenium than if its at 20%.

I used to use it for acid washing pools. It costs a lot more but is worth it if you cant handle the fumes. I would only use it for acid washing though - I don't think its worth the high cost just for routine pH maintenance.

I work at a local Leslies and I only wished that they would only hire CPO's (like myself) instead of kids with retail experience. I dunno I just feel that the customers would rather go to a store with educated experienced people rather than salespeople that try to rip them off. I know I'm not...