It doesn't happen with all gfci's or all ups's. Only certain combinations. Not all ups's will leak current to the ground wire and if they do not all gfci's will inturpret the amount of current as needing to be interrupted. You would need to have a ups that leaks enough current to the ground wire to cause the gfci to think that it needs to trip. The point of the gfci is to interrupt the current when it senses enough to hurt someone but not enough to pop the breaker at your service panel. Different gfci's have different thresholds for this.When battery is charging, gfci thinks it is leaking current and trip. Same thing happen with induction coil. Google UPS trip gfci or fridge trip gfci.
After hearing all this feedback I will be able to have a better discussion with our contractor Monday (and am considering hiring a dedicated electrician to fix his work). Good idea to put the aquarium on its own circuit so it's power only gets interrupted if it's absolutely necessary. We did check if any GFIs popped nearby in the kitchen but did not check the garage yet, now that I think about it. Not sure how he wired it since he didn't really discuss any details with us - a missed opportunity in hindsight.Mike - good question. Chromis - anything else on that circuit?
One problem created by electricians is daisy chaining outlets off of a ground fault. if the outlet detects a fault and pops, all the outlets downstream go dead, while the circuit breaker in the box is unaffected. It can be frustrating troubleshoot experience.
Yes, that was the problem! The nut on the leaking bulkhead was noticeably not parallel and was probably putting uneven pressure on the internal gasket. Thanks for reassuring there wasn't a missing gasket! I decided to brute force the overflow with silicone. Ironically the Eshopps quality check sticker was also in the way of the tightening nut, but on the side that wasn't leaking.You also might make sure there's no latera torque from your plumbing on the bulkhead. If so, it may prevent the bulkhead from sitting flat if there's lateral pressure.
Thanks, parts of that thread were hilarious Yeah, I had a similar experience with the brown and pink cucumber being pretty reclusive. Kind of makes up for the fact that it looks like a "turd with legs" ha.Here's the thread I started about it. http://www.bareefers.org/forum/threads/sand-cleaners.19322/