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Hi Everyone, My liner will be replaced in a couple of days. I have had an iron problem (unknown source) and my current liner has staining. I was thinking of doing an ascorbic acid treatment the day before they drain my pool (and remove the old liner) to get any iron out of the plumbing and...

Hi Everyone, I’m getting a new liner in a few weeks so I am going to paint my aluminum coping (which, I beileve, is Cardinal CP2) before the liner install. I have read a bunch of threads about the process, plan to use spray paint, and have started prep, but I have some questions about...

Hi Everyone, I have some iron in my pool that I am trying to get rid of. It's not from the fill supply (probably from fertilizer and well-fed sprinklers spraying in the pool over time). Did a 30-40% drain and refill but I still have enough to mildly stain the liner when I raise the FC level...

Hi Everyone, I backwashed last week and post-backwash filter pressure was 14.5 (which is right on target based on 10 years of experience with this pool, my filter runs at 14.5 psi with a new, post-backwash DE charge). Pool ran at 14.5 for a day or two, then it started dropping. Went to 12.5...

Hi Everyone, I did a backwash three days ago and everything went well with filter pressure on target with its norm (my filter runs 11 psi empty and 14.5 psi with a new, post-backwash DE charge). Yesterday I noticed the pressure was about 2 psi low and today it is the same (about 12.5 psi)...

Hi Everyone, I’m trying to diagnose a potential leak. Symptoms: - Water level drops more quickly than expected - Area of lawn near pool (basically between pool and pump) stays wet longer than other areas - I now pump the well-point after every rainfall beacause the liner corners aren't “sharp”...

Hi Everyone, For those of us that run our pool year-round Fall leaves can be a pain. Here is a simple way to keep 95% of the leaves out of your skimmer... just place a double loop of your vacuum hose (the Pretzel) in front of your skimmer. Now you can leave for a weekend and not worry about...

Hi Everyone, I have a 3/4 hp Pentair Challenger (I believe it is a High Head) that is controlled by an AutoPilot Dig 220 which I would like to upgrade by swapping in a two-speed motor. I want the Dig 220 to still control the pump on/off schedule. A couple of questions... 1) I have two pop-up...

Hi Everyone, My water is a bit green and I'm trying to figure out if it's algae or metals. My first assumption was algae, so I have been superchlorinating for a few days. I still have some trace levels of CC, and I am wondering if chlorine oxidizing metals (iron) in the water would create CC...

Hi Everyone, I'm rebuilding a Pentair Challenger and I ordered a new housing O-Ring but what I received was a square ring (it says "new style"). Are these interchangeable or did the housing design change at some point? Thanks, Dean

Hi Everyone, Are the fans in the Dig 220 thermostatically controlled or are they always on when the unit is operating? I have a pump motor that shuts off due to thermal overload and when the pump shuts off I can hear the AutoPilot fans operating until I select "Pump -> Off" which cuts the...

Hi everyone, I am looking at getting a patio umbrella (Fiberbuilt 9' octagon) and a pulley based mechanism seems simpler and more robust. However, my wife is not too tall and I'm worried that she might not be able to reach the pin that is used to secure the canopy, especially since the...

Greetings, My setup was working fine until yesterday when winds blew a jillion helicopter-thingies from the trees into my pool and clogged my skimmer basket. Things were running for several hours with very reduced water flow. I cleaned the skimmer and the pumps baskets and started back up...

No-low pressure cycling. Pump basket will fill (with water) and then, whoosh, drops down about half or more. Feeling the outlet jets I feel no pressure and then a short burst (not full pressure) that seems to correspond with what I observe at the pump basket. This cycle takes about 5 seconds...