You mount the pump at the hot water heater, what type of valve is at the farthest point to allow water circulation? I have slab construction. Thanks
1035444
The valve that you need is sold by Grundfos. You can buy as many separate valves as you need.
1035445
It's a valve provided with the pump that cross-connects the hot water - in our case, under the sink - to the cold water. It is supposed to open only when the temperature of the water in the hot water pipe becomes lukewarm to allow the cooling water in the hot water pipe to circulate into the cold water line moving warmer water up from the water heater. Hope this helps.
1035446
I mounted the valve that was supplied with the pump. you must install this type of valve. Its made over cheap plastic/compost type material. I mounted mine under the farthest from the tank bathroom sink in the cabinet. I still don't understand how the valve works but, but it does
1035447
Your kit should have come with the bypass valve. This is mounted under any sink between the hot and cold water pipes. Best location is at the farthest point from the hot water tank. I actually have 3 of these bypass valves installed because of the way the hot water is distributed throughout the house. You should have a flex pipe between the cutoff valve and the faucet for both the hot and cold. These flex pipes feed the bypass valve and you will then need two more flex pipes to go from the valve to the faucets. If your kit did not come with the bypass valve and pipes, you can order them online. The valve is referred to as a comfort valve, also from Grundfos. This system works great. I have the timer set to come on about an hour before I get up and run for 3 hours in the morning and 3 hours in the evening.
1035448
Not exactly sure what you mean. You have to use the special by-pass valve assembly on each sink you or tub you want to use. I have them only on sinks for easy access. The farthest sink would be approximately 40 ft from the HWH.
1035449
The recirculation valve goes right under the farthest sink and hooks up between the hot and cold water .
466078
Diverter is in the front at the wall mounting bracket, just above the hot/cold water lever
1169775
I do not know about running this pump or any pump on its side. I'd be tempted to dig a sump hole into the streambed so I could keep the pump vertical. Best wishes, Paul
1065110
You won't have any problem at all. To turn the water on, you push the handle to the side. To control the temperature, you move it forward (for cold) and backward (for hot). When the handle is pushed back as far as possible (for hot water), it doesn't go any farther than the base of the faucet. If the faucet fits your space without touching the window, then the handle won't touch the window either. I love my faucet!
1638589
I don't think it will work without the sensor valve located at the farthest sink from your hot water tank.
1552700
Not enough to be objectionable. The flow is very low once the thermostatic valve receives hot water.
1769545
You need both a diverted valve and a temperature control valve. That is two different valves that need to be plumbed correctly.
816064
can you install it in a pipe that is already split toward the hot water tank or does it need to be where the cold water enters the house
911962
There is no adjustment -the heater is automatically "on" when the water is being circulated. Works very well in keeping the water temperature about right. If water temp gets too high for comfort-not our experience- you can just shut off the circulating pump.
1283154
The valve/using the cold water lines as your return lines system is imperfect. What happens is you are filling the cold water line with hot water recirculating to the water heater and you have to run it out before you get cold water. In theory, the valve is supposed to close when the water at the faucet is hot enough but it does not always work as advertised and your "cold" water would still be warm anyway. The way to completely solve this is to abandon the valve and install a return line directly from the last hot water appliance in each main hot water line all the way back to the water heater, and into a tee at the drain line. This way the cold water lines are unaffected. The valve/using the cold water lines as your return lines system is imperfect. What happens is you are filling the cold water line with hot water recirculating to the water heater and you have to run it out before you get cold water. In theory, the valve is supposed to close when the water at the faucet is hot enough but it does not always work as advertised and your "cold" water would still be warm anyway. The way to completely solve this is to abandon the valve and install a return line directly from the last hot water appliance in each main hot water line all the way back to... » Read More The valve/using the cold water lines as your return lines system is imperfect. What happens is you are filling the cold water line with hot water recirculating to the water heater and you have to run it out before you get cold water. In theory, the valve is supposed to close when the water at the faucet is hot enough but it does not always work as advertised and your "cold" water would still be warm anyway. The way to completely solve this is to abandon the valve and install a return line directly from the last hot water appliance in each main hot water line all the way back to the water heater, and into a tee at the drain line. This way the cold water lines are unaffected. « Show Less
584418
The "cool side" lever is a simple on/off valve and doesn't care what's upstream from the unit. The hot side lever is also just an on/off valve but controls the input to the heating tank. The water pressurizes the tank, pushing the hot water up to the spout. Again, you can feed the hot water side any way you want. I use a GE filter in the basement to feed both sides using the 1:2 splitter they provide (they provide one in-line filter to feed both sides)
495216
It depends. I use 2 because of the layout of the bathrooms. Put one valve at the farthest point from water heater and see how it works at other locations. You'll know if you need others
395866
Weird. Is the hot water valve all the way open after installation? Do you have good pressure with cold water? If not is something under the sink pinching the hose? Never heard of anything like this. BTW I'm just a consumer not a plumber.
495218
If you have a really spread out house yes. You basically will put the valve at the furtherest point and then hot water will be available to all the points between.
1406244
The water does run from the hot water pipe into the cold water pipe and back to the hot water heater. It works great. I have not noticed any hot water coming out the garden hose when the pump is on. This system was first recommended to me by a Hospital Building Superintendant which uses a commercial version of this same system. I highly recommend installing this product to save water and get hot water when you need it.
1691749
I circulate water in 3/4 lines in a closed loop, radiant system using this pump. Installed 1st one 6 yrs ago and have had no problems.
2080844
The manual indicates under the Caution section "Do not install on hot water supply lines. The maximum operating water temperatures of this filer system is 100degrees F" I am assuming that after that the filter will not work as intended.