3" - 4" Drains

This expands in the pipe creating back pressure and pushing the clog out by force. I have a nortious 100ft pipe that clogs from all the sedement and I'm sure has a break under walkway somwwhere. It always clogs and I have to flush out before and after rains. This worked great to pressurize and clear a clog I couldn't get rid of for years! Once cleared, i put this on hose at one end and did my hose rod up 90ft up from the other end, making everything flush out to street rather than backing up into yard as it was doing before. My drain now flows better than ever before!

Update: After using this several times, I've come to see this as a miracle product. It works better than a drain auger being run by a professional plumber. If the problem is a solid ball of roots, this wouldn't work, but anything less substantial and it knocks it out. Today, this let me dislodge a flushed object (pullup? ball of baby wipes?) that was clogging my main sewer line so badly that sewage backed up into my showers. It has paid for itself many times over - and doesn't charge extra for work on weekends! ******** Tried before using a 100' drain auger, but it couldn't clear the clog. Then did the auger. It also didn't clear the clog. Tried the Drain King again with a longer hose, had to let it work a while and let the water drain a couple times, but it finally did the job. For the money and ease of use, I will be using this every time before trying the auger. Warning: the water has to go somewhere. That's probably going to be a bathtub or sink. Have people watching so you know when to stop or you'll have sewage on the floor.

Last year the main line backed up and I paid over $700 + the mess of cleaning up the inside overflow …YUCK! This time I had a better idea of the issues that happen before the full back up happens. Flushing the toilet and then bubbling in the toilet and slow drainage in the tub. Then waste coming up in the shower/tub when flushing the toilet is the last line of defense before it’s all over your floors! So this time I watched some videos and stumbled across this item. Seemed reasonable enough if you kinda understand what’s happening. Something clogs the mainline (toilet paper, toys, or even roots) and all you need is an enough pressure to push it out of the way. Now it could be a major issue like a collapsed pipe, but if you just need to push the junk down the pipe, THIS WILL DO THE TRICK! (The first thing I did try was some chemicals that should have eroded the junk, but that didn’t work for me. That was about $100) After some research, I went with this brand. A lot of people advised not to go with other brands. I hooked it up to the hose line and you have to push it down just enough to seal off where water doesn’t overflow on the ground, but also so that it doesn’t blow back into the house. It’s not far, but look at some videos on this (if you don’t push it far enough it will either not work or make a larger mess). The first time I tried it (I was a little scared), I turned the water on for 5 mins but it wasn’t sealed so it didn’t work. It wasn’t far enough in the pipe or maybe was in an area where it didn’t fill the pipe all the way. The second time I did it, I pushed it a little further, this time I knew it wouldn’t blow back into the house so I was less scared. It made a seal so that the water didn’t come out the top of the pipe onto the ground. I ran the water for 10 mins. When I turned the water off, I heard a big suction sound and that’s what you are waiting for. The blockage was pushed out and you are back to normal. They say that you should run the hose a little longer just to make sure the junk is pushed all the way down the line. Some lines of 100ft or more. Anyway, this was a $21 solution. I know I saved myself hundreds of dollars and the headache of having to call a plumber. Now I have what I need in the event that this were to happen again. Hope this helps you!

Great invention. Expands inside pipe with water pressure. Should clear local obstructions. Don't expect to clear tree roots or large amounts of debris such as a large amount of soil that has infiltrated a pipe. Expected to work well for routine maintenance flushing. Bought for using on 4" property drainage line. Update-- Stored indoors in plastic bag to help preserve it. Used about 3x since 2014 purchase. Went to use it 4th time, (11 years old, 2025) and heard a large 'pop' from the pipe. It blew out the bladder -- catastrophic failure. Photos show damage. The rubber is very thick. Expected to get more usage from it. Probably needs super formula to last longer. Ended up buying a 2nd one, since it is a valuable tool. If you run into a blockage that cannot be cleared, mark the location on your hose. You then know how far from entrance point that the blockage occurs, and can focus on that area for repair.

Has saved me hundreds of dollars.

Amazing. We had an under-sidewalk 4" pipe connecting a downspout to a dry well. We manually cleared about 5' of clog but couldn't access a middle 1'. This did it! And I thought to take video as the final batch of crud was pushed through (incl. an old screwdriver; you can't make this stuff up). We got access by digging out the yard side and removing the downspout to access the house side. The sound of the pulsing let you know it's in a good place and working. Don't jam it hard into the clog. For newbie DIYers like me, fyi, this needs a straight hose, not a curly one, to get into the pipe enough.

A must have Works in almost all situations. Heavy duty Great buy. You should have one on hand

I didn't expect too much from a 20 dollar product. I had a really bad clog in my mainline. I had water backing up in my downstairs shower and toilet. I tried a bunch of different liquid drain uncloggers first, then I was gunna rent a mainline snake from home depot, but decided to try this first. This thing worked wonders. I had the mainline unclogged within 10 minutes. Great product.

This device is great at clearing drains etc

Por fin pude destapar mi drenaje, que la constructora (Ruba) dejó con material el tubo de 4” con una brida de 3”, lo había tratado de desatascar con uno de resorte truper, pero se destapaba parcialmente, ya que solo movía las obstrucciones, pero como continuaban, al poco tiempo se volvía a tapar, usé este y se empezó a escuchar un golpeteo en el drenaje que iba bajando de intensidad hasta que se escuchó que el agua salía libre, ahora en el tubo horizontal se queda 0.5cm de ancho de agua, ya podré poner nuevamente mi taza

Item delivered is as described

This is the second one I have bought. this one is build a lot heavier than the old one I had. It works great. I recommend this product

En mi caso no me funcionó, nunca se infló