EB66

I just thought I'd update this with the conclusion of what happened. @inhotwater called it perfectly. It's an LX pump and something had separated/sheared off inside the impeller, but somewhat miraclously was still allowing the back side of the impeller to spin. So it was still moving around, but only at ~30% the normal rate and sounded pretty bad. The whole wet end needs to be replaced just as @inhotwater predicted.

@inhotwater Thank you for the tip, I appreciate it! Just curious, how would it be possible for something to become lodged in the pump intake if the filter and screen have never been removed? Internal components can spontaneously break off and become lodged on the intake side of the pump?

Hi all, I have a hot tub with a single two-speed pump. Sometime over the past week, the pump became much more noisy (both on low speed and high speed) and it moves much less water than before. I don't think it's an airlock because I haven't drained the tub recently. The hot tub is a generic "Jazzi" tub with Balboa internals. I recorded a couple videos of the behavior. The first video is me turning the pump on low and then on high. You'll notice the jets aren't moving water all that much despite being on high. https://youtube.com/shorts/ckycQvIKyIE?feature=share The second video is filmed right next to the pump (warning, it's loud): https://youtu.be/edyQd4Re7XY To the more trained ears on this forum: what's this sound like to you? Is it ok to keep using the hot tub when the pump is in a condition like this? The pump still circulates water so the hot tub heats up. The hot tub belongs to a vacation rental so I'm hesitant to take it out of commission until it can be repaired. Thank you!

Dug a little bit more into this issue. My hot tub is an Arctic Spa and the pump model is NEW41. When I search Arctic Spa pump websites, I see they have listings for low speed capacitors and high speed capacitors. So I'm probably mistaken about which capacitor needs replacing. The high speed capacitor is the larger one and works fine (not a start up capacitor). The smaller capacitor is for low speed operation (not a "run" capacitor) -- and since low speed is malfunctioning by my logic then that's the capacitor that needs replacing. I've attached a photo of the smaller low speed capacitor. Does this look like a suitable replacement? https://www.arcticspastore.com/arctic-spa-parts/low-speed-capacitor-arctic-spas/

The main two-speed pump on my spa is behaving oddly. When I start it up on low, it just humms. When I run it on high, it goes great. If I switch back to low (with no break between high and low), then low works fine. But if I pause between high speed, wait 5 seconds, then start low speed, it just humms again. After some research, I've learned that this behavior is most likely due to a bad startup capacitor. I opened up the pump and took a photo of the specs written on the start-up capacitor, but I don't have enough electrical experience to identify an appropriate replacement. Could someone take a peek at the photo I've attached and let me know what an appropriate replacement start-up capacitor would be? The details on the current capacitor are: SINTEX 45 (manufactured August 2008) S E5 C 45 45 uF +- 5% 50/60 Hz AC 400V B 25/85/21 AC 450V C 25/85/21 AC 450V 2.86/3.43 kvar Phase 1 Thank you!

@CanadianSpaTechThank you! Talk about a needle in a haystack.

@CanadianSpaTech Any alternative ideas on what the jets might be? I reached out to Hot Tub Outpost and this is what they replied with:

Thank you!

I'm working on a hot tub whose jet inserts have all begun to fail and pop out of their socket. The hot tub has a Balboa heater and control panel LCD, but as far as I can tell the tub itself is essentially "off brand". I can't find any information about the tub body itself aside from some generic Chinese manufacturer information printed on the inside of the tub. The white portion of the jet measures 3 and 1/4 inches in length. The diameter of the white threads measures 1 and 5/8 inches. However, I don't think these jets screw into anything (at least I couldn't screw them back in) they have a snap clip at the base of them and that's what appears to have deteriorated to such an extent that they're all popping out now. The silver face piece measures 3 and 3/8 inches in diameter. I've tried using the jet insert finder tool at SpaDepot.com -- must've looked at hundreds of different jet insert styles -- but nothing matches. Anyone know how I might find replacement jet inserts? Thanks!