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Had a Pentair salt cell that flow switch was bad at beginning of season. Replaced flow switch and ran 24 hours and checked chlorine. Nothing. Had also anticipated salt cell was eol and ordered a replacement cell, IRCF40. Put it in last night and ran all night, it did show low salt initially...

I'm in winter conditions and have had a lot of dirt and rain water get in my pool. I put a new tab in and opened up the filter and hosed it out (didn't take the grids off the rack). Now my water is clear but I have what looks like pond foam on top of it. Is it the filter? If not, then what...

I've had black algae for the last 2 years. This year it was really bad at the start of the season and I'd managed to kill most of it. Then my swg died two days ago and today I'm seeing signs of black algae again. Is there anything I can do besides keep scraping tablets over the affected area...

I have a Pentair Intellichlor SWG. The system was installed in 2009 when I bought the house and had the pool resurfaced. I think the current one is the 3rd or 4th one I've had. I bought one new and had at least 2 warranty replacements. And the current one I replaced the flow switch on about...

We're planning on getting some concrete work done so it is a good time to replace the 3-way valves. Primary reason for replacement is that they're too close together to automate. Here are the options: 1) Leave them alone 2) Open up the concrete and modify the plumbing to put in new valves in...

For the first time I've purchased a floater and a bucket of tablets but I have no idea how much/many and for how long to maintain a steady chlorine level for the winter? Is there guide for this? Also, does it make a difference how much the floater is opened/closed? My pool is 12,500 gallons.

I've got an air leak, evident by the bubbles in the inlets. I've replaced and lubed the pump basket lid. Also re-piped the pump inlet from the ground to the pump (due to trying to tighten the thread on the union to eliminate the leak and busting the union.) Looking for suggestions on how to...

How often do d.e. filter grids need to be replaced? How do you tell when it is time to replace them?

My pool circulates clockwise. I use a vac-mate to run my pool cleaner, only problem is that the vac-mate weir is on the right-hand side of the hose, which means debris collects on the hose instead of being sucked into the weir. Is there a vac-mate with the hose/weir reversed? Or is there...

I'm into the 2nd day of doing a SLAM to eliminate what I believe is algae (see pics). When I started my CYA was 60, PH around 7.6. The pool was clear when I started, just had some patches of algae. The patch in the spa was algae as it was actually green, the other patches I'm not so sure...

I'm looking for a recommendation for a good durable pool cover. I live in the desert southwest outside of Palm Springs where the summer temps reach 120 and the winter temps get down in the 20's. The first year I owned a pool I'd bought a used one on craigslist, it lasted 4 years, since then...

Opened the pool earlier this month and the water looks good and is testing good for CYA and FC. But I still have a couple of spots of algae that just aren't going away. What do I need to do and for how long to get rid the spots?

My Pentair 4000 Heater is turning on but doesn't heat up. I'm guessing it is probably the igniter, but I'm checking here for any tips/tricks/gotcha's that I should look for before ordering a new part. The heater was installed in 2011 and is exposed to the elements all year (I live in southern...

My intellichlor IC 40 salt cell is powering up and then immediately turning off and starting over again. I'd just replaced the flow switch, when I first turned it on it was fine, went out to check two hours later and it was doing the power cycle thing. Info about my system - Salt cell was...

My pump is losing prime when I set the filter valve to the filter setting. When I set it to recirculate it runs just fine, and will even start pumping again when switching back from filter. Switching to filter, after about a minute or two it visibly loses prime. Any ideas what might be wrong...

I want to upgrade my D.E. Filter valve from the old push/pull to a multi-valve setup. I ordered this thinking it was the right one: Amazon.com : Pentair 261177 1-1/2-Inch Threaded Multiport Valve Replacement Pool and Spa D.E. Filter : Swimming Pool Filter Valves : Garden & Outdoor, it wasn't...

My pentair VS3050 pump ran dry, could have been for up to two weeks. It melted the basket. The pump still turns on, but I had the cover off so I don't know if it still creates suction. What should I be watching for or replace immediately to avoid future problems? TYIA! Jonathan

I've got some persistent algae on my pebble tech. Just some dark spots around the steps. Of course, once I add algaecide to kill it, then the water gets hazy/cloudy. Can I treat for the algae and haziness at the same time? Is Natural Chemistry Pool First Aid the right thing to use to treat...

I'd posted elsewhere in the forum with the pump losing suction. After a few weeks of back and forth with it, I finally figured out that it was the grids were clogging. When I took the grids out, the system ran just fine, put them in, it lost suction and ran at a lower rate from the start. I...

I have a Pentair VS 3050 intelliflow pump that keeps losing suction after 20 minutes. My pool is a uni-body with 2 inlets directly into the pool and 1 into the spa, water then flows over the wall into the pool. Filter is a 48 sq ft DE filter that I took apart and cleaned out a couple weeks...

My intellichlor keeps showing a flow error light. I'd opened the pool in March and it was working normally until recently. Things I've tried: 1) Increased pump speed 2) Reapply silicone to pump lid seal 3) Removed vacuum from Vac-mate to allow for maximum water flow. 4) Back flush filter -...

I'm in southern CA just outside of Palm Springs. Bit higher elevation so it gets a little cooler in the winter. I've been a pool owner since 2009 when we bought the house. It was recommended to replace the plaster since the old one had one more acid wash and then would need to be replaced...