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Thanks for the input. I have fiberglass steps, but they are not stained. Skimmer might be slightly stained. Just for clarity, I wasn't thinking of doing a full AA treatment, just dropping in a pound of ascorbic acid the day before the liner folks show up to try to lift the iron into the...

I thought I had replied to this, so my apologies for the LONG delay. I used spray paint to do my coping (will post details in the near future). The paint you point out looks very interesting and I will keep it in mind for other non-skid jobs in the future. Thanks! Dean

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...

Thanks! I have an idea about how to proceed. Will post it in the Deep End soon. -Dean

Thanks for the thread pointers, lots of good info in there. I'm still a bit unclear about whether a MetalTrap will filter sequestered iron. Obviously, when using the oxidize + mechanically filter approach the iron can't be sequestered but I believe the green sand type of filters also involve a...

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...

Down another pound (now 3 lbs below normal). Something is going on here...

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)...

Thanks TX Splash, my thinking is pretty much along the same lines. I am entertaining the idea the a suction-side leak causes the bubbles when pump is on and could let some water slowly leak when the pump is off. This theory might also explain how I get metal deposits even though my pool is...

Okay, multiple bucket tests over the past few days show (within my measurement accuracy) the bucket and pool losing the same amount of water, from 1/16 to 3/16 per day. That doesn't rule out a small leak but it's a good sign. Wet area in the yard must be getting water from somewhere and the...

Was trying to compare pump on vs. pump off situations. I probably jumped the gun and am doing a regular 24 hour bucket test for a baseline. Thanks! Dean

Pool lost only 1/16" during the day yesterday (sunny, low 80s, humidity in the 20s). Ran a bucket test overnight with the pump off this time. Air temp in the 50s, humidity 70-80%, water temp 68. No discernible difference between bucket and pool loss (both about 1/16"). Will run a pump on...

I assumed that overnight loss should be 0 with cool temperature, reasonably high humidity, and no sun. Perhaps my assumption is incorrect.

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...

Thanks, that's what I suspected. (By the way, what is MPS?)

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...

The old O-ring is round and the new one did not look like it would fill the channel properly but (surprisingly) it works just fine. No leaks.

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

Sean, Thanks a bunch for the info. My Dig 220 appears to be working just fine. -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...

Thanks for all the great info! I ordered a crank umbrella for my patio table. Next, I will probably get a pulley umbrella to put next to my poolside lounge chairs (it will be freestanding, so no leaning over a table when trying to set/unset the pin). -Dean

Thanks to everyone for the input! -Dean

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...

Thanks for the info about bleeding the filter, I hadn't thought of that. It didn't do anything in this situation, but I will keep it in mind in the future. My problem turned out to be the seal on the pump basket top, it had a couple of small striations that were apparently aggravated by 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...