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    Clean my ~90 foot pool and calcified natural rocks

    I notice the manufacturer of Kieseritealso offers a slightly more abrasive formulation for blasting natural rock waterlines and pebble-tec. This would solve my situation exactly: I have an 83-foot pool with about half of it incorporating a rock waterline. The rock has become badly calcified. The...
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    how to figure out which Swimquip S​ta-Rite skimmer I have?

    I'm trying to determine what skimmer type I have on the pool that came with my house. Removing the basket, I see 8560-87, which suggests to me it is part 8560-8, which fits on a Swimquip S​ta-Rite Pool Skimmer. I don't know which exact model I have. How would I determine this? I would...
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    how to diagnose and fix weak suction for suction cleaners?

    I have several automatic pool cleaners that rely on suction. They didn't work well when we moved in a few months ago -- someone somewhat knowledgeable ascribed their listless performance to "weak suction" so we've been relying on a pressure-side Polaris 280. That person may or may not have...
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    Waterfall suggestion: 75 or 120 GPM? (video)

    I'm contemplating replacing the pump on a waterfall in an effort to save money on electricity. The current pump dedicated to the waterfall is a Hayward SP4015NS attached to a 1.5 HP Northstar motor. The pump I'm contemplating replacing it with is a Hayward TriStar waterfall pump. Hayward makes...
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    How do I lower the water level of my pool? (valve pics!)

    We've had heavy rains and I'd like to lower the water level in my pool. Besides siphoning it, or relying on an external pump, can you advise how I could lower the water level a few inches? There are exhaustive pix of my equipment pad, as well as some solid analysis of what each valve does, by...
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    How to refill reagent bottles OR dropper to fit big bottle?

    I'm testing my water every day now so I bought bulk Taylor reagents in the 16 oz size. What's the best way to refill those little bottles, the ones that came with my test kit? Alternately, have people found a way to fit droppers to the large sized bottles? Thanks!
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    in-ground spa: any $ savings with a cover? what to get?

    I have an in-ground spa built into a cement pool deck, next to the pool. I know that rigid covers are commonly used with standalone spas. Question: are there any dollar savings to be had by getting some kind of cover for an in-ground spa? I have seen floating bubble-wrap "covers", and I've...
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    Recommendations for umbrellas for my pool "beach"?

    Our pool has two "beaches" -- very shallow areas where a toddler (or adult) can splash around in about 1.5 feet of water. These "beaches" have holes in the middle of them, in the pool floor, to accept an umbrella with a shaft of perhaps 2-3 inches in diameter. Since the mount is underwater, I...
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    6-foot waterfall: is there a pump that won't bankrupt me?

    My pool has a ~6-foot waterfall feature (see picture.) I love the sound of the waterfall, I don't love the cost of running it. Can someone tell me if the pump that's installed is overkill and/or inefficient for my use? The pump dedicated to the waterfall is a Hayward SP4015NS attached to a 1.5...
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    Filter/pump spagetti: Is my spa doomed to heat the pool?

    FP here, be gentle. :) We bought a house with a nice pool and an in-ground spa. I've spent the last months untangling its mysteries, learning how to balance my water (thanks TFP!), and trying to sort out the equipment that's already set up. The short version of this question: my in-ground spa...