How to install a gravity hot water system?

Cut into the pipe at this location where the pipe in the basement turns up to go into the fixture on the first floor. Install a tee fitting in place of the 90-degree fitting. One part of the tee will allow you to reconnect to the hot water line. The other portion of the tee fitting will be the start of the return loop back to the water heater.

Where is the check valve on a gravity hot water heater?

Install a check valve in the uninsulated part of the loop about 5 feet away from the bottom of the water heater. You MUST use a flapper-type check valve, not a spring-loaded one.

Where is the islolating valve on a hot water tank?

It will be located on a pipe coming out of your cold water feed tank (in the loft or a high up space), OR, you may have an islolating valve on the pipe coming out of the top of your hot water tank. How to turn cold water off : to turn off cold water locate your mains incoming supply and turn that off. NB this may only turn off some cold water taps.

Is there a way to use a gravity loop for hot water?

If you don’t want to install the actual loop, and want hot water at your plumbing fixtures instantly, you can install a nice pump that does what a gravity loop will do. These pumps work on timers and move hot water through the system when you think you’ll need it. They have a special valve that connects under a sink so there’s NO WATER WASTE.

What kind of plastic is a header tank made of?

A header tank is used to maintain water gravity feed to the main tank. Viking Plastics offers hot water header tanks manufactured from Polypropylene or High Density Polyethylene. The plastic used in the manufacture of the tanks is suitable for drinking water.

What’s the difference between a header and main tank?

A header tank is a reservoir containing water that is installed at a higher level than a main tank. A header tank is used to maintain water gravity feed to the main tank. Viking Plastics offers hot water header tanks manufactured from Polypropylene or High Density Polyethylene.

Can a header tank be used in a pressurised system?

Our rainwater header tanks are designed for use within a non pressurised system and are compliant with the Water Supply Regulations 1999. Available in a range of sizes to suit your needs, the tanks come with level sensors and power safety options.

How does a header tank rainwater harvesting system work?

Recovered rainwater is classified as a category five risk as defined in the Water Supply (Water Fittings) Regulations 1999. The Stormsaver system complies with WRAS guidelines relating to system design and protects the integrity of the mains water supply. A non pressurised system will gravity feed the water to its point of use from a header tank.