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Liquid chlorine can be great for pools and doesnt add cya like granular shock, however it expires or weakens relatively quickly. Some writeups claim that in 6 months on the shelf, the 12% liquid shock will have little to no chlorine left. Buying in springtime is the most perilous if it is left...

Pressure washed decks adjoining pool and no doubt some debris and wood fibers got in the pool. Even after backwashing the flow through the filter is good at first, then reduced to a trickle after 15 min. Backwashed 4 times, same thing. I could have left a little floc on bottom from 2 weeks...

R410 Pool Heater I have a Hayward unit giving trouble. It trips off on 'LP, : code and we understand that to mean low suction. Trouble is suction reads 95. Right now high side Schrader cap stuck due to Oceanfront salt spray corrosion. Since Hayward provides no charging chart, you have to...

I think I have the Perma Cast PS4019 Hand Rail anchors and they have corroded and failed. It appears this style is poured in place when the slab is poured. Anyone know of some type of replacement anchor to fit in the same hole - or do I have to cut up the slab there and repour maybe a 12"x12"...

I have a new liner coming in which has rod pockets at the back of the highest stair Tread. (really at the lowest point of the highest step riser) The idea being to keep the liner tight to the wall by mounting a rod to the pool wall at this location, after sliding the rod through the rod pockets...

I have a 10 year old inground fiberglass pool where the gelcoat is in pool condition. I am considering installing a vinyl liner. There are retrofit tracks or channels made which will allow for the conversion to vinyl. The track is installed at the top inside edge of the pool. I know you cam...

I have a 10 yr old fiberglass pool which has lost most of its gelcoat and has many thin places. You can see fiberglass fibers in some places as big as 16" square in the bottom especially. It has no cracks and does hold water. We're considering having applied a rolled on coat of gel coat. My...

We have a 25,000 gal Concrete pool in NC and the water is so dark green, it's borderline black! Ordinarily we'd drain it, however the water table is within 1' of the surface, so that's not an option. Here is the chemistry before we started last weekend. Hardness 200-250, PH 8.4 !, Alk 120...

I'm working on 2, that right 2 identical fiberglass 15,000 gal inground pools, with extreme chalking problems so bad that they both plug their respective sand filters within 4-6 hours. Both were clear upon opening last week, but have begun encountering extreme chalking of the gel coats in both...

I don't have the test readings on the water yet, but man do I have a green one this year! Ideally I'd prefer to drain the water, however our water table is just a few feet below the ground surface. Trying to vacuum this one will likely plug the sand filter in just a few seconds. Curious what...

In a gunite pool we have several return port flanges leaking at the pool wall. The leak shows itself when winterizing and blowing out the return lines with air. With the rubber stopper tightly in place, a lot of air leaks between the flange and the pool wall. Clearly if left unaddressed, pool...

Just getting started with a fresh tap water refill this year on a gunnite pool. Trying to figure out the optimal plan for adding chlorine. I posted something similar yesterday on the algae topic, though the main suggestion there seemed salt water chlorine, and I'd rather not go that way :)...

Over the last 4 years I've had several pool services and none have been able to keep my pool algae free, without a lot of effort. Pool is heavily used in North Carolina, and often has had 10-15 house occupants in the pool in hot weather. Following prior tips on this forum, am starting anew...

I understand that liquid chlorine will help keep cya low, as opposed to using pucks, so we are headed that way We've got a 30,000 gallon pool that has had a persistent algae problem for years, and high cya. So as the season closes we want to transition to liquid chlorine. I suppose it's the...

We have an 8 year old gunnite pool with a dark gray speckled mini pebble plaster finish. To the touch the finish is perfectly smooth and free of cracks or chips, and bonded tightly. My pool guy uses tri-chlor or lots of the 3" tabs in the skimmers and he says he keeps the chlorine level at...

I know this will sound lame to the pros but I have a Sneaky leak on hot tub 1/2" right angle jet fitting? drip drip drip. This is a fitting in the side wall of the hot tub which accepts a 1/2" flex pressure line and then it turns 90 degrees and seems to reduce way down probably to create the...

Every time we get appreciable air bubbles appearing in the glass lid of our Hayward Super pump it seems that we're drawing air from somewhere, right? Not necessarily so. We've had an intermittent problem as described above for the better part of 2 years. It will sometimes appear as low...

My pool guy moans and groans every year when opening my gunite/plaster pool. I see the plaster as being very tight and in great shape with no flaking, bubbles or soft spots at all. On the other hand he swears that the plaster is a haven for mold spores and that he can't just shock the pool with...

My pump is out of service due to some major re-piping. Curious if any Pros or others have ever tried to shock a green pool with the pump off? Will it work? My water level is drained down 30" for the winter and I want to get the water clear for some leak testing on the pool structure. Please...

I have a large 10 yr old gunite pool which has been leaking for some time, however with the moderate earthquake in Va last year, it has been leaking more. About 2-3" overnight. Leaking stops about 6" below the normal water level. All of the skimmer and return lines have been pressure tested. No...