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My MX6 never got stuck on the stairs in our pool. Earlier this year, mine was in need of spare parts again. With oak leaf and oak streamer season looming this year, I bought a robot cleaner. The MX6 could not deal with the huge volume of oak leaves we get, and would have to be cleaned out 2 or 3...

Very ingenious! Thanks!

Thanks for your inputs! I'm going to look for a rebuild kit. That Jandy valve goes back to 1994.

My pool has two skimmers. The returns from these terminate in a Jandy valve, from which a single pipe enters the pump. When I rotate the valve to the center position, there's an air leak that can't be primed out. However, if I turn the valve to the left or right (20 degrees or so), the air leak...

You can reduce the MX-8 RPMs by reducing the suction to the skimmer where the MX-8 is installed. It takes some trial and error to get it set correctly. It's not unusual for the tracks to get worn down or stretched out. Best to replace them with OEM tracks.

The propeller and inner workings should all turn freely, you are correct. You might try "field stripping" the apparatus inside the cleaner, to make sure there's no invisible debris and all the bearings are clean. If all is good inside and the mechanism is still stiff, you might want to return...

In past years, I typically tested chlorine levels every few days and then added liquid chlorine based on the test results. The results weren't always so great. Yellow algae would start to appear after a few days, especially in shady areas. This past season, I started adding small amounts of...

Thanks for your help! Be interesting to see how long it takes for the pH to recover.

In a distracted moment, I added too much muriatic acid to my pool. The test results afterward are: Temp 86 degrees F Cl = 6.0 pH = 6.8 CH = 475 TA = 60 CSI = -.65 This time of year, our pool pH increases very quickly. I usually have to add muriatic acid every 2 or 3 days. I understand a CSI...

The CH for my pool was 575 a few days ago. We had a big rainstorm a few days ago (6 inches), and CH dropped to 495. So, a few big storms may bail you out. Our water supply is very hard, as it comes from an aquifer. We do what santacruzpool suggested above - keep the pH down and the CSI at zero...

Earlier this year, my MX6 would get stuck trying to climb walls. I changed out the side A directional control device, and it's worked fine ever since. You might check out the tracks, the treads might be getting worn smooth. Another possibility is to check the suction through the cleaner; the...

Zodiac MX8 Getting Stuck, Moving Slowly or Going in Small Circles - YouTube

You may need to change out the directional control devices on your MX-8. I changed out the corresponding part on my MX-6, and it runs like new (it only has one such component). The parts will probably run around $40 - expensive, but cheaper than a new pool cleaner.

Thanks for your responses! The rebates are mildly tempting. Best bet may be to wait.

I'm hoping to acquire a robotic cleaner during the next 10 months, but am not in a hurry. I'm inclined toward the Maytronics robots. Here's my question. Is there a time of year when the prices on these cleaners are discounted? End of season/off-season? Black Friday? Beginning of the season...

Have any of you robot owners had trouble with the cleaner causing damage to your pool steps? I saw a complaint about this in an Amazon.com review. Also, any ideas on when prices on robotic cleaners are at their lowest? Seems like we should be seeing lower prices this time of year. Thanks!

In addition to tethering the MX-6 at the far end and using a shorter hose, you might try reducing the suction just a bit to the port that powers the cleaner. With too much suction, our MX-6 also tries to "escape" by traveling up to the water line; then it sucks air as you described and sinks...

Hi Kim, Wow, that was quick! To answer your questions: I used my trusty TF-100 test kit and speed stirrer for the tests. The algae does not puff up when brushed; in fact, it's on the plaster very solidly. Thanks!

Hello, This is my first post, and I'm hoping you folks can help me identify the algae infestation in our pool. First, here are my test results from today: FC = 4.5 CC = 0.5 TC = 5.0 CH = 475 TA = 110 pH = 7.8 CYA = 50 I'm pretty sure the problem here is algae; I determined this using a 3"...