Finally got the installer back out about our leaky dishwasher, turns out I was right to push

I ran into something similar when we got our Whirlpool installed about six months ago. The initial setup looked fine, but after about two weeks, the draining started feeling sluggish. It wasn't just slow; there was this strange gurgling sound every time the cycle finished, and some dishes were coming out still wet even though the machine said it was done. I assumed it was just a minor clog, but the issue was definitly related to the plumbing connection. I traced it back to where the drain hose met the garbage disposal. The installer hadn't seated the P-trap connector correctly, and the pipe connection was a little too tight, causing pressure buildup and that gurgle. It wasn't a leak, just a huge inefficiency. I tried gently loosening the compression nut with a wrench, and when I checked the connection, I saw a small plastic piece of the coupling was slightly warped.

I called the handyman who did the install and explained the gurgling and the performance lag. He came over and took five minutes to replace the coupling and reset the connection. It made a massive difference; the draining became almost immediate and the noise stopped completley. If the installation is done by a proffesional, you absolutely have the right to call them back if the function is off, even if the tub looks dry.

It really came down to the connection integrity under the sink, not just wether the floor was wet. If it feels sluggish or noisy, it ussually means the drain line needs a closer look.

My expirience was a little diffrent from the leveling issues you mentioned. My installer actually got the machine perfectly level and the hoses were clipped up high, but the problem was when they connected the drain line to the garbage disposal. I noticed water pooling in the sink basin right after the dishwasher finished its cycle. It wasn't dripping from the appliance itself, but it was backing up from the connection. The setup they used was too low relative to the sink drain. I had to pull the whole thing out and adjust the PVC coupling height by about three inches to ensure the drain line wasn't submerged in the splash zone of the sink. It seemed like a tiny adjustment, but once that specific plumbing height was right, the overflow completely stopped. It sounds like the installer was focused on the machine's internal mechanics and not the entire plumbing interface. I found that even if the machine looks perfect, you need to check the entire path where the waste water goes out into the house.

My issue was more about the seals when we set ours up. It wasn't the floor, but water dripping right inside the bottom rack during the wash. It looked like it was coming from the door gasket. I found the installer hadn't properly compressed the seal where the door meets the frame. A little bit of pressure is all you need to make those plastic seals hold tight. It's frustrating when they look fine but fail under pressure.

I don't think it's always true that sluggish draining or a wierd noise means the problem is just the drain line connection. I've had situations where the gurgling happens because the internal pump timing is off. That specific issue is totally seprate from how the P-trap is seated under the sink. Fixing that usually involves checking the solenoid valve settings inside the unit, which is a much more involved repair than just tightening a coupling. It's rarely a simple fix under the counter.