120W Water Pressure Booster Pump 115VAC,396 GPH,21.7 PSI Household Automatic Home Booster Pump with Water Flow Switch for Home Kitchen Bathroom Irrigation(H15GR-15)

This water booster pump was very easy to install. We used it at our condo. It has helped with adding more pressure to our water especially during showers. I like that it has an automatic button and will only run when you turn on the tap. I found the price to be reasonable. It is a bit loud when you turn it on however you get used to it.

The pump works well when installed. The fittings are a pain in the bum to say the least though. It took a couple of adapters to get the hose thread to pipe thread for PVC but in the end I got them there. BUT, both ends of this thing have rubber washers to seal with. And flatly they suck. It's very hard to get this to not leak. I'm still checking it daily because the first couple times after it run a bit it started dripping. Not cool. The second thing is this pump is LOUD. I have a dehumidifier that runs under my house and I can barely hear it. I hear this pump kick on every time a faucet is turned on or the toilet flushes and it's located in the crawlspace under the house as far away as I could get it. It also says in the paperwork not to run it more than 30 minutes at a time because it might overheat. So I suppose watering my outside plants using water pressure boosted by this is out of the question. That's ludicrous to say the least. I'm using it for now. But if it goes bad, I'll definitely be replacing it with something better. Edit: Lowered to one star. It lasted six months and died. Don't waste your money.

This water pressure booster pump works perfectly and delivers strong, consistent water pressure throughout my home. Installation was easy, and the automatic flow switch turns on and off smoothly when water is in use. It’s quiet, efficient, and ideal for the kitchen, bathroom, and irrigation needs. Great quality for the price—highly recommended!

Received pump quickly from Manufacturer and installation was not difficult. The time consuming process is re-route of piping that I had to sweat on. Running Pex would have been simpler however I do not have tools for this so decided to sweat it with copper. It is important to run a bypass in case you want to pull the pump for whatever reason. Install a shut off valve prior to pump ( which you need to anyway) and then run a line that bypasses pump with another shut off. Bypass line will have valve in closed position unless need to remove pump later. No leaks using standard 3/4 copper female fittings and pump unions with provided rubber gasket. I am using the switch setting to I which will turn on when hot system calls for it. Setting II is always continuous on which I am not sure why there is that setting as leaving it on will likely cause the pump to fail and burn out over extended periods. This pump directly feeds my hot water tank cold line into tank. Check valve installed prior to pump inlet. I have added just under 10 psi to my hot water system. I used 3 elbows from the pump outlet to the cold in on the tank which is probably why I am not getting full advertised PSI. If i had to run it again, I would have installed it in the horizontal position directly before the tank cold in on a vertical copper run. This would have eliminated elbows. The unit is noisier then expected. I can hear the pump turn on on the second floor however bathroom on second floor is just 14 feet directly above where pump is installed. If you install it further down the line somewhere, it would be less audible however it would lack the power to provide any additional PSI that far down the chain for a whole house system. I also did not want the pump turning on simply when using cold water for any branch off cold lines I would have if pump installed down the chain. Overall, increased pressure in shower which is noticeable. Eventually , Ill buy a 700 dollar Davey pump and never think about it again. I do question the longevity of this unit, not including rubber seals which will eventually breakdown and leak. There is also a rubber seal around the pressure sensor that has the potential for failing down the road. I would not install this pump if you do not have a floor drain in your mechanical area. I don't believe the durability of this pump will last more then a couple years and adding it into your system is only providing a week link. If you have a floor drain in your mechanical area, you can feel better knowing your basement wont flood. There is a "model 20" unit which I could not seem to find. I would have rather put that model in since I was already doing the leg work. I do not like how the inlet and outlet step's down 3/4 to 1/2 inch. The "20" model is 1 inch and likely steps down to 3/4. Thank You,

This water pressure booster pump is an excellent solution for home use! It completely fixed the low pressure problem in my shower and kitchen. It doesn't take up much space and was very easy to install under the sink. ​The automatic flow switch is a great feature; it starts and stops perfectly whenever I turn the tap on or off. It’s very good quality,

It significantly increased the water pressure in my home. It automatically starts and stops via a flow switch, runs smoothly, and its high power and efficiency are perfectly sufficient for simultaneous use in the kitchen and bathroom. Installation is simple, and it operates with very low noise. It's an excellent product that meets my needs.

I got the pump and I installed it last night. It was a little harder than I had anticipated as the hoses that I had available were not the proper fit so be sure that they are 1/2" female side to whatever connection you have in the boiler, and 1/2"female as well for the water supply. No fault from the supplier there. The package comes with a very cheap Teflon tape. It is appreciated but I definitely recommend for you to get one from Home Depot or a similar hardware store. I tried to use it and it started to leak water in two different places. I had to redo it again using a better Teflon tape with much better results. The instructions booklet is essentially useless. The instructions are very unclear so you have to figure everything out by yourself. It would not hurt for the manufacturer to invest a few bucks on making a more detailed instructions booklet considering that this product is not cheap. The water flow improved, no doubt about it, to the point where the pass-through boiler is no longer failing to start on demand. Do not expect to see a huge improvement, though. It will change from a trickle to a decent water flow but it will not do miracles. The final point is the noise. I mounted the pump to the wall in a vertical position. I secured it to the wall by tightening screws on the side plates of the pump. I selected the position with the two bars ( || ) and not the ( I ). The booklet does not mention it but this position ( || ) is for the valve to control the pump while the ( | ) position is for the continuous function of the device. It is enclosed in a service room and it can be heard all the way to the kitchen so it is a little noisier than I had expected. My only complaint really is the manual. If you are not savvy about plumbing it is not a true DIY product. Edit: Not so much related to the quality of the pump but I ran into an issue last night The hot water hose started leaking a significant amount of water. It was already in a very bad shape and when I replaced it with the one that I had previously removed from the cold water side, it broke as well. To make matters worse, when I installed the new hoses this morning, the valve for shutting off the water flow started leaking as well. Bottom line: The increase of water pressure will most likely affect the old system so make sure that you need to replace them as well when adding the pump. It was not funny to be soaking wet in the middle of the night trying to at least do damage control to the situation. You have been warned :)

I ordered the KolerFlo H15GR-15 and received a mangled box of incorrectly packed pump and missing parts. See attached photo. I immediately reordered a replacement pump. I received it yesterday in good condition and properly & neatly packed. I unpacked it and got it installed around 8:30pm as a backup pump for our gravity fed water system. Our main pumping system is currently broken and we’re waiting on parts, so I purchased the KolerFlo as a backup system. After installing the KolerFlo, I turned it on to the “Move” position and proceeded to purge the lines of air bubbles. Afterwards, I came back and switched the KolerFlo to “Auto”. The pump would switch on then off, then on, then off, for about 5 minutes. Around an hour later, my wife went to take a shower and told me there was no water pressure. I went and checked the pump and it was still set to Auto, but would not turn on the pump. I switched it to Move again and it started pumping. My wife took her shower. Afterwards I set the pump to Auto and it started the surging, on, then, off, then on for about 10 times. I checked a faucet and there was no water coming out. Obviously, the pressure switch is garbage. This is almost exactly as described by another reviewer. Do NOT buy this junk! I’ll be sending it back.