WAYNE CDU790-1/3 HP Submersible Cast Iron and Stainless Steel Sump Pump with Integrated Vertical Float Switch - Up to 4,600 Gallons Per Hour - Heavy Duty Basement Sump Pump, Black

I recently purchased a 95% gut renovation in Chicago. The plumbing work that was done is phenomenal, so I was extremely surprised to find a 1/2 inch of water in half of my newly finished basement after our first flash flood rain of the summer last month. I pulled the sump basin lid off and sure enough, it completely full. I fished around in the water with my hand until I found float and wiggled it around a few times which finally triggered the pump to turn on. It drained the basin and drained the water that had backed in the inlet pipes, leaving me to push all of the standing water floor drain and spend a few days cleaning up the mess. When it rained again that weekend, I immediately went down to the basement and sure enough, I watched the basin fill quickly, but the float didn't trigger pump again, so there I sat on the floor in the utility room, for 3 hours in the middle of the night, hitting the float with a piece of wood every 5 minutes to turn the pump on. Once it stopped raining, I pulled the pump out, which is when I learned it was a Flotec FPZS33T model. I disassembled the float switch, cleaned all of the contacts, reassembled the switch, checked all of the seals, cleaned the intake, and put the pump back in the basin. I ran my garden hose into basin, and successfully triggered the float switch. I was feeling pretty satisfied with my handy work. Problem solved right? Wrong. We got through two more decent rains without any problems. The pump seemed to be working well. On Wednesday night (two days ago), the entire Chicagoland area was under Flash Flood and Tornado warnings. When the rain started, I went down to the basement and everything seemed good. After about 20 minutes, I went back down to the basement and noticed that basin was 2/3 full, but the pump was still running full tilt because I could not only hear it, but I could hear the water moving through the discharge pipe. I sat there for the next 20 minutes and watched the basin slowly fill to capacity, backing up the inlet pipes yet again. Within an hour of the rain starting, I had water beginning to pool on the floor again, not as badly as the first time because the pump was actually on, but bad enough to really tick me off. This pump was less than a year old, and it already had a faulty switch and completely failed to keep pace with a regular summer thunder storm! I ordered a Wayne CDU980E 3/4 horsepower sump pump on Amazon with overnight delivery. The pump came by noon yesterday. I had it installed in 15 minutes because the fittings and pipe lengths were a perfect match. I tested it and it ran great. Last night we had another torrential downpour and new pump worked like a champ! This thing didn't even break a sweat, and it is actually a bit quieter than the other pump to boot! I'm very satisfied. Great product and incredibly easy to install! The Wayne pump only cost $30 more than the Flotec pump and it is a much better design and WAY me powerful. I'll monitor the performance over the summer and post back if anything changes. The good news for Flotec is that I might not throw their garbage pump away immediately. I'm thinking of making an outdoor basin that catches rainwater from my gutter downspout and then pump it into a larger catchment in my garden to use for watering my plants. So yeah, this pump will spend the remainder of its life in my garden, moving rainwater for my vegetables, but I will never allow it near my home ever again!

This pump is better than what I imagined it could be. The pump that I used for 20 years failed a few months ago and it would take 25 minutes to empty my hot tub which holds two hundred 30 gallons. I bought this new beast and hooked it up and it took less than 5 minutes to empty my hot tub. Remember to order the appropriate hose with it. As I was doing my research it seemed as though none of the hot tub manufacturers remind you that you need to purchase an exit hose This sump pump has an inch and a half throat at the exit So I did my research and watched a bunch of videos and realized that I had to buy an exit hose with a 1 1/2 inch thread. it went together perfectly and it works like an absolute charm if you need to know which hose to get with this it is the Drainage Industries Dischrg Hose 1.5x1.5x24' https://www.amazon.com/dp/B06XS5TMDD?ref=ppx_yo2ov_dt_b_fed_asin_title. Best Sump pump ever...Worth every penny.!!

This sump pump is great. This was my third pump that I purchased . My water well is very narrow measuring at interior for 11 inches diameter . None of the other pumps would work as the float would get stuck and make pump run indefinitely (even those that claim to be “tight space friendly “. This pump fits just right , it’s silent , expels water outside very quick and effectively . Best of all it comes with 3 year warranty unlike the competition at only one year . Highly recommend

Easy install. Works great!

I have a sump pit in my back yard, to remove rainwater to the street about 100' away. This pump does that no problem, even though it's only recommended for inside use. The problem is the intake ring is a bunch of small openings, so any solids in the water clog those openings, dramatically reducing flow. I'll give this another one or two rainstorms to see if that issue remains. If so, I'll replace with a sewage grinder pump instead of this incorrectly-purchased indoor model that seems ideal for dewatering a basement.

Great product at a great price. Easy to install and runs quiet. Looks like sturdy quality.

Years ago, I installed a Wayne CDU 790 model to replace two older side-by-side pumps left behind by the previous owners of my house. (The previous owners relied on two pumps in the crawlspace because they had a serious water intrusion problem due to an improperly retired septic system. As the new owner, I mostly resolved that problem by having the old field lines dug up and smashed.) The Wayne pump lasted 13+ years (Feb 2012 - Aug 2025). Its main task was to pump out air conditioner condensate that accumulates during the summer season, as well as to pump out seepage following prolonged periods of rain. It lasted way, way beyond its warranty period. Eventually the float disconnected from the pump activation arm, and the bottom perimeter of the float had somehow badly deteriorated as well, permeated by holes all around. I only (and luckily) learned of these problems due to a recent "pre-vacation" check. The pump motor was still operational, but given the general level of deterioration overall, it seemed like it was time to retire the pump. Since this first unit lasted so long, I just installed another of the same model. I suppose that I should have proactively changed out the pump after about 10 years. Machines ultimately fail, and require periodic monitoring.

The only way to know this is a 120v power is to very ver closely examine the photos. The pump will therefore require a US to UK voltage converter, not something you really want in a wet pump room! Am amazed this is not highlighted in the description on Amazon.

Excellent so far and quiet!

We purchased this pump in February to replace a 5 year old pump that was loud and the float kept getting stuck in on the on position. We didn't realize how quiet the sump could be and lived with the noisy one way too long. In Spring, our sump pump goes off 5-6 times an hour and the old one was so loud we could hear it two floors up. The Wayne pump is so quiet that we don't hear it. It was an easy install even though we had never replaced the pump before and we easily saved over $500 by not using a plumber. It's a solid built unit and much higher quality than the old pump. If we ever have to replace it we will happily choose another Wayne. So glad we could find it on Amazon as the in store pumps at local hardware and plumbing supply stores don't measure up to this one.

Same plumbing as my previous pump so installed in 5 minutes, including unpackaging. Worked the instant I plugged it in and well water was instantly gone. Very impressed. Far better quality than that available at the big box stores and about the same price. Delivery to your door the next day is far more convenient, especially when you get a superior product.

Great sump pump. Moves water fast and quiet... Where I live this thing will run 24/7. Even in deep Feb - 35c outside, somehow water still gets in and this pump takes care of it no problem. I had an issue one morning of the Check valve seized closed on the pvc pipe. Pump was churning for 8+ hours trying to pump water out. Almost flooded entire house.. Replaced the 10 dollar check valve. Pump runs like nothing happened. Still quite and running smooth. May have taken a few cycles out of its life but it does seem to be fazed as of yet. Would and will buy again.