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    pool alarms (in the water type)?

    I recently got information from our town's building department, regarding requirements for AG pools... like many owners of a 'blue blob' pool, we are starting to think there may be a larger, permanently installed AG pool in our future. The electrical, bonding, and fencing requirements were all...
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    2 speed motor for hayward powerflo matrix?

    I just purchased a pump/sand filter combo unit on Amazon, because of the unusually low price: Amazon.com : Hayward Pro Series S210T93S 21-Inch Top-Mount Above Ground Pool Sand Filter System with 1.5-HP Matrix Pump : Swimming Pool Sand Filters : Patio, Lawn Garden [I'll note for future reference...
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    GFCI Code for Swimming Pond

    I know this is an old thread, but it does seem to be a general discussion of the safety and code issues, so hopefully OK to tack on my question. My parents are having an ornamental pond installed in their back yard. Although described as a pond, the intention at the moment is to maintain the...
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    why is pump generally before filter?

    I searched a bit and didn't find an answer to a simple question - why do most pool setups push water through the filter rather than pulling it through? In other words, why is the filter downstream from the pump rather than upstream? I recently came across the "skim filter" - a product sold for...
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    winterizing skim filter ?

    My parents' new backyard pond (described in more detail in this post: startup for ornamental pond ) has two below-ground skim filter units installed, like this picture (which I hope has attached successfully to my post). This is a Waterway product, apparently sold primarily for above ground...
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    startup for ornamental pond

    I have a question related to a small (maybe 3000 gallons? I'm not quite sure) ornamental pond that my mother is having built in her yard. The pond is being built by a pool builder (he is developing a sideline in these garden ponds, and has built a handful of them thus far). The basic...
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    filter sizing question

    We have been running for the past three years with the pump and filter listed in my signature (old Intex 2500 gph pump -- current equivalent model is 633 I believe, and size B filter -- all of 15 square feet). With careful attention to chemistry, this works, for the most part, but is hardly...
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    will increase in TA tend to keep pH from dropping?

    In contrast to most who post about pH changes, our experience is that our pool's pH consistently drifts down over time. It's been my impression, reading on the forum, that this is more common in the Northeast for some reason. During a typical summer I add a couple cups of borax, probably every...
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    Horrors! You're putting what in your laundry??

    As a nice complement to misgivings about putting laundry bleach (!!) in a swimming pool... I was at the supermarket earlier, buying some bleach, for laundry, of all things. Up above the bleach shelves I noticed a Clorox product I haven't noticed before - dry granular laundry bleach. Curious, I...
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    onslaught of CYA eating bacteria?

    I've been struck by the number of threads lately where posters with an unexpectedly low CYA number are advised that they may have CYA eating bacteria in their pools. I thought that was a fairly rare occurrence, seen mainly after months of overwintering the pool. Are we really seeing multiple...
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    Covering (winterizing) an AG Pool

    What is the reason for your preference here (no cover)? The original poster might be curious (and I'm certainly curious, in case I ever get an AG pool that stays up over the winter).
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    gone for the year

    With one of these ring top pools, 'closing' the pool looks pretty final. As of last weekend, the water has been dumped in the woods, and our pool has been cleaned, dried, folded up into a large unwieldy bundle, and put into an old plastic car-top carrier that we conveniently found out by the...
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    filtration of iron (precipitate?)

    I'm not sure if this is the best place for this question -- please move, if necessary. We have a seasonal pool, filled every year with well water. The well water has iron in it (don't remember levels, as it's been years since we had a water test done). We've never done anything about the iron...
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    is 1/2 hp pump too small for 18" sand filter?

    Hi, I've posted a previous thread which included the question in the subject line above: http://www.troublefreepool.com/threads/84519-asking-advice-pump-filter-upgrade-for-EasySet-type-pool but thought it might work better to post the question with its own subject line. Our existing pump is a...
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    rationale for clear water criterion for end of SLAM?

    I've searched and read, but haven't found a specific answer... One of the criteria for successful end of SLAM is crystal clear water. Is this just an empirical observation (i.e. do it because it works), or is there some reasoning/understanding behind it? In other words, if all the algae is dead...
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    asking advice -- pump/filter upgrade for EasySet type pool

    We have a Summer Escapes 18' x 48" pool (first summer with this pool after ~5 years with a smaller 1000 gal. pool of similar type). We're using an Intex 2500 gph pump with the B size filter cartridge. This pump is bigger than the pump that came with the Summer Escapes pool; however, filter...