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The high concentration of chlorine might not be great for your equipment -- TFP recommends against placing trichlor pucks in the skimmer for that reason, and your cal-hypo granules will raise the chlorine concentration a lot higher than pucks would. And pushing such a high concentration of...

If you switch to a reliable testing method, you'll find that chemicals do what you expect.

@Leebo, thanks for the update -- I'm sure it was a lot of work. My general feeling about the new UI aligns with the opinions already posted here, but I also have some more-specific notes. Is there a bug tracker for the app, or would you like a private message, or is this thread the best place...

Keeping the heater on won't really do what you want. Say your heater is a big one, 400K BTU/hour. That means it can add one degree F per hour to around 38,000 gallons of water -- let's call it 36,000 gallons to make the math easy. The heater won't work unless the flow through it is at least...

The "mode" just describes where the water is being pulled from: In Pool mode it's coming from the pool, and in Spa mode it's coming from the spa. So if you want to use the Spillway feature-- where water is pulled from the pool and returned to the spa -- you'll be in the Pool mode by...

Whether you do the test indoors or outdoors, you can calibrate your eye with this 50ppm CYA solution: R-7065 CYA Standard 50ppm (2oz) Do the CYA test with it instead of pool water, and see what the dot looks like when the tube is filled to the 50ppm line. That's what the dot should look like...

Someone with more knowledge or experience should answer that. All I know is that mine is copper and it's lasted for years and years.

A 266K BTU heater will heat your pool one degree per hour. But whenever the pool is warm, it will of course be losing heat to its surroundings. So the net effect of the heater will be to heat the pool by some amount less than 1 degree per hour. A 400K BTU heater will heat the pool 50% faster...

Your automation can tell the valve to turn to either Position A or Position B. ON1: The valve turns clockwise when told to move to Position A, counterclockwise when told to move to Position B. ON2: The valve turns counterclockwise when told to move to Position A, clockwise when told to move to...

+1 for the MK rodent-proofing mesh. Fits great, easy to install, lasts a long time.

A PVC-pipe shield would provide a lot more protection from the sides (and top, if it were longer than 3 inches). But if I already had your shields and didn't want to fabricate new ones, I'd probably try extending the top and sides of the existing shields by bending a piece of thin sheetmetal or...

What shape are the shields? If they're tubular -- made from PVC pipe, maybe -- they'll protect the surfaces of the sensor and reflector even in a strong rain. And if they're not too long, they shouldn't really affect aiming difficulty.

It'll rise perpetually. If your TA gets down to 60, pH will rise much more slowly. If you add some of your 220 TA tap water, or if you have a new plaster pool, or if you run aerating water features, it'll rise more quickly. You REALLY don't need to. See how long it takes for the pool pH to...

A number of people here run their pools without main drains. It's fine UNLESS the water level drops below the mouth of your skimmer(s). If that happens, your pump will run dry and it will probably overheat and need repair or replacement. Of course, even having a main drain only helps in that...

Haha. They sell holders separately, so you can move your guides around (or in case you lose one): Eley Guide Stake. Although if things work at your house the way they work at mine, you'd buy a replacement for the one you lost, select a good spot for it, kneel down, and with the first swing of...

That was the situation with my old box reel, but I solved it a couple years ago by buying an accessory from Eley: Garden Hose Guide Hammered the tubular stake into the ground directly in front of the box, so the hose always pulled straight out to the guide on its way to where I actually needed it.

Thanks! The only one I saw on their site is a zip-up fabric cover that seems more for long-term storage than day-to-day concealment. Is there another cover?

Following up on my earlier post. I got a wall-mounted Eley reel that I love, and a freestanding one that I want to love but can't. The problem is that there's nothing to guide the hose neatly onto the reel when rewinding it, so it always looks like some lazy kid wound up the hose -- it's all...

Pool equipment is conceptually simple: A pump suctions water from the pool, then pushes it through a filter and returns it to the pool. There are usually valves on the input side before the pump (Suction valves) and valves on the output side after the filter (Return valves), to adjust where the...

My controller is in one of these boxes: Sockitbox, Large The box sits on the ground, shaded but basically unprotected, and it has kept the controller dry through even the torrential downpours we've had this year. I'm very happy with it. Like many others here, I leave the robot in the pool...

Can't fool me -- I know this is fake because you didn't use the word "battling".

There is a threshold speed above which the SWG will work and below which it will not. Aside from that, RPM does not affect the amount of chlorine produced. So if 3000 RPM for 12 hours/day at 100% works for you, you will get the same result running at ANY RPM above your SWG's threshold for 12...

FYI, Eley is having a March Madness sale: 15-20% off everything. This is the first time I've ever seen their stuff on sale, so I bought a bunch of it.

... unless you live where electricity is expensive, and then pressure-side cleaners are by far the most expensive. To calculate how many days it takes for a robot to pay for itself after replacing a pressure-side cleaner, divide the cost of the robot by your cost for 1 kilowatt-hour of...

There's a lot of other stuff going on that I'm sure you want to solve first... But if I understand you correctly, you're saying that you want the pump to run more slowly with the heater on than with the heater off. Is that right? If so, make sure that when the heater is on, the flow through it...

That seems to be the root of your problem. If you can separate the chlorinator from the Pool circuit and put it on its own circuit, you'll be able to run the pool alone, pool + chlorinator, pool + heater, or pool + heater + chlorinator.

Is that actually necessary? I can't test this on my Pentair EasyTouch system, because it allows a maximum of only 12 schedules and I'm already maxed out. But if your Jandy system doesn't have such a low limit, it seems to me that you could set up six PAIRS of 2-minute spillovers, with the...

As @ajw22 says, it's always risky to prevent the spa drain from fully closing. If you're going to adjust actuator stops anyway, my advice would be to leave the spa freeze protection enabled, leave the Suction valve alone, but set the Return valve to be much more than "slightly" open to the spa...