I just purchased a house with a swimming pool and decided to keep the pool guy that has been caring for the pool for the previous (and original) owner while we got settled in. It has been 9 months and I am ready to part ways to try to save some money. He comes once a week around 5 PM and spends 20 minutes vacuuming, emptying the basket, skims the top, and tests/adjusts water chemistry (Also, he cleans the filter every 4 months and the pump runs about 1-7:30 PM everyday). I want to make sure to mention, I have never had any problems with the pools water chemistry, it has always been perfectly crystal clear since being here. Swimming has always been enjoyable and we never had a bad experience with the water chemistry affecting us.
With that being said, my questions is this: How does he maintain a perfect swimming pool and all he has uses is a huge (maybe 5 gallon) blue container (no label) that he says is liquid chlorine (which he only really uses in the summer), 3 inch tabs in the floating dispenser and Orange gallon bottles of liquid Muriatic Acid (Hydrogen Chloride 31.45%) using about a bottle per week in the summmer and around every 2-3 weeks lately? He works for a commercial pool company so the chemicals are likely wholesale and I won't be able to obtain them. I just don't understand how he can do it this way after all the research I've done refers to many other different chemicals, i.e. shock, algaecide, etc.
Any thoughts or input on this would be greatly appreciated. I know I don't have the water testing numbers, but I feel that they are all within range. He definitely knows whats he is doing, and I am just thinking although he makes it look so easy, I won't be able to maintain the amazing quality of pool water he creates without him.