110V NPT3/4'' 3-Speed Domestic Hot Water Circulation Pump 93W Recirculating Circulating Circulator Pump for Solar Heater/Faucet(RS15/6G)

It's a pump, it does what pumps do. It moves water or the liquid of your choice (I don't judge) from where it was, to where you want it to go. And at a much cheaper price than the big box store charge. I was able to flush a heater core using CLR and water mix and the pump worked great, as long as you prime it you won't have any issues.

My DIY project was to add a hot water recirculation loop to provide hot water to the kitchen sink and upstairs shower. The original 40 year old copper pipes are very long taking forever for hot water to arrive and and uninsulated that would cool off quickly after water flow stopped. I installed a new insulated 75' long 3/4" PEX loop to bypass the existing lines that used the BOKYWOX 110V 93W NPT3/4'' 3-Speed Food Grade Pump to return hot water to the water heater cold water supply inlet. The pump is activated by a 12VDC N.O. IR motion sensor at both locations which trips a momentary input to the UCTRONICS DC 12V Programmable Multifunction Time Delay Relay. The timer is programmed to run the pump for 3 minutes, off for 5 minutes, and repeats if motion sensor trips again. At the highest flow rate it takes about 60 seconds for hot water to arrive from a cold start. The pump appears well built, quiet with no leaks. After about 2 months the pump is providing excellent service and would buy again. 2 check valves are required, one to prevent hot water from entering the cold water loop and the 2nd one on the pump discharge to prevent backflow when pump is idle. Be sure to purge air from the return loop on initial startup, as this loop is vapor locked and pump is dry.

I installed this pump yesterday. It works fine so far. This pump replaces the Watts recirculation pump (2 of them died after only 2-3 years of use). The only thing to remember is, that is doesn't directly mate/connect with the male 3/4 in connector on the water heater, because it has (2) 3/4 male connectors ( I guess because it is advertised as a pressure booster). No big deal, I just bought a female/female 3/4 in coupler. I am reusing the same bypass valve that came with the Watts pump. We will see how well it holds up compared to this Watts garbage.

I actually used this as a replacement pump for a 2 year old Bestway/Coleman Lay-Z-Spa. My impeller and impeller shaft were irreparable (I tried, trust me), so I just bypassed the pump. I left the old pump in place, disconnected the power to it, and installed it under the "egg" between the intake line and the old pump intake. I sort of just cut the line that was there and used clamps to clamp it to this pump. So quiet you can't hear it and it has really nice constant flow. I can still use the heater in the original egg unit thing because the flow sensors detect water movement. I didn't want to drop another $350+ on a new one when everything worked but the cheap pump they nestled in there. I'll try and get some pictures and a better explanation, as there is very little to no information about these inflatable spas online. I'm sure this thing works great for what it was designed for as well.

Died after the first use.

Using this pump to circulate domestic hot water so distant faucets have near-immediate hot water. Pump works great and is quiet running. However....the product description for this pump says "can be used in drinking water pipelines", and then says "not suitable for potable water". Which is it? For the model I bought (cast iron pump housing), it may be the latter. Even after the "3-5 times of use" there is still a taste in the water of chemical, where there wasn't any before the pump was installed. It appears that some kind of coating was applied to the inside of the cast iron pump housing. Not sure if this is what is causing the taste. Sent this one back and bought the one with the stainless steel housing. We'll see how that one does....

La bomba de recirculación BOKYWOK RS15-6B es una opción práctica y económica para mejorar la circulación de agua caliente en el hogar. Funciona a 110 V y cuenta con tres velocidades ajustables, lo que permite adaptar el flujo según la necesidad del sistema.

Good pump for the $

I used this pump to pump water to swimming pool solar heating panels. This is my second pump. The first pump has been working properly pumping water to another bank of panels. The pumps are silent operation and compact. These pumps are able to pump water through 600 feet of 3/4" solar panel tubing at medium pump speed with ease and will likely easily pump through 1000' or more of 3/4" tubing.

It works great. I went through several pumps to find one that was this quiet. Only negative comment is the instructions are difficult to understand

this is the quietest pump i have come across. 1 from lowes and1 from princesauto were screaming loud and had nowhere near the power this little pump has. 3 speed is a bonus. I have a Intex spa hot tub which has gone through 3 motors in a year. decided to modify unit to run an external pump. works better than i expected. have to put my ear to the unit to confirm its running. no detectable vibration on all 3 speeds. Just connect and plug it in. pump inlet and discharge connections are for a standard garden hose. How long it runs is to be seen. So far extremely impressed. Will definitely buy another unit as a back-up or place in series.

Fast shipping, well packed and good customer care from seller. They didn’t have the colour I ordered and checked with me before sending a different one without delaying my order. The pump itself seems solid and well built and extremely quiet... nearly silent, can hardly tell it is on. It’s only been running for a day now but so far no issues. Pumping water from our pool through 5/8” hose to the second floor/roof to a solar heater with no issue. My only complaint would be the somewhat confusing instruction booklet... very little english with baffling illustrations, but I don’t think it matters as the device is very simple anyway.

works well and reasonably priced but i could not get it to stop dripping out of each fitting, very slow drip but i used teflon tape and the fittings were as tight as i could make them,,,maybe should have used thread paste then the tape, in hindsight. The fitting i thought threaded on too far before it went tight, as in a lack of taper on the male thread of the pump. other than that happy with it, so far.