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I've been pouring muriatic acid into my pool for over 10 years. I opened a bottle today and it looked like dark urine. I looked it up and it sounds like it might have been contaminated with iron. I know iron in pool water can promote staining. I'm concerned about using this bottle of acid. Is it...

I noticed my water valve for my in-floor cleaning system is making a thumping noise. It starts with a slight clicking and the sound of swirling water builds up then a loud thump. After the thumping it gets quiet again.l Sometimes it's one thump and other times there are several consecutive...

I've had my IntelliConnnect with my VSF pump and IC40 connected for several years. Earlier this month I was receiving a communication error between the IntelliConnnect and the IC40. The IC40 is less than a year old and working. I had to disconnect the IC40 from the RS-485 connection block and...

I've read I should manage to CSI but should I be concerned if the CSI (.05) is good but the pH (8.2) is high?

I have two spots in my pool both in the bottom corners that appear to be rust from rebar. Both spots are 1cm or less. When I first saw them I swam down and hit the spots with a brush and I got a small reddish orange cloud in the water. Being that the spots are so small are there underwater patch...

My IntelliConnect/IntelliChlor IC40 shows my salt level in 3500ppm. Testing with my Taylor K-1766 I get 3200 ppm. While I understand either reading is within normal I'm just curious which is more accurate not if it would make sense to use the average between the two.

I have a K-2006. When testing pH find it difficult to tell the difference between 7.8 and 8.0. I've noticed if I put a drop of the Acid Demand Reagent it seems to drop the pH by .2. When I can't tell the difference between 7.8 and 8.0 I add the Acid Demand. If after 1 drop the color matches 7.6...

I've had my pool for 5 years and in that time I'm on my third pentier generator which is currently 1.5 years old. I was talking with the owner of a pool service company. and mentioned how many generators I've been through. He asked about my water chemistry. I keep alkalinity between 60-80. and...

Hi, I took off my Intellichlor IC40 for cleaning. On the side where the water flows into the SWG there is a plastic grid at the mouth of the opening like the one in the picture below. My plastic grid fell out of the SWG and it looks melted or warped on one side. It's not longer round and it...

I cleaned and put my SWG (Pentair ic20) in boost mode because I had no chlorine. While in boost mode the green cell light is green most of the time but ocassionally it turns off for 5-10 minutes which I understand indicates chlorine is not being produced. Since I'm in boost mode shouldn't the...

I have a 14 month old Intellichlor i20 and a 10,000 gallon pool. The SWG comes with a salt light to help monitor salt levels. Green is good, flashing green salt is high, and red means salt is low. 6 days ago neither salt light, red nor green were lit. The owners manual says nothing about what no...

What is the purpose of this hole in my skimmer? It's the opposite side of the weir door and about the diameter of my pinky.