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To prevent any back water from the shower head and also the water contamination into system.

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Q: What is a back flow preventer in relation to a shower head?
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Related questions

What is the only way to prevent back flow?

In plumbing, by using a device known as a backflow preventer. It only permits water to move in one direction.


How do you stop back flow in shower and toilet?

Snake the downstream line and get rid of the plug up.


Can a back flow preventer in a sprinkler system get clogged up?

I guess I would have to say first what kind of back flow? There are lots of them. Then to answer your question has it been along time sense you've used this valve? If so there could be a smallest of chanses. In 20 years in my job I've never had this happen. But I guess there is always a first.


Can you add an extra shower head to your shower just by cutting a tee into the shower head riser or will you lose pressure to both heads?

Yes, you can install a tee in the riser. The pressure loss will be minimal since both shower heads will have a flow restrictor unless you remove them. If you remove them, you probably wont notice any difference. If you do notice a difference, put the flow restrictor back in the closest shower head to the shower valve.


Why is there is a trickle of hot water to shower when the flow is good elsewhere in house?

Did you remove the shower head and check for a flow restrictor or mineral deposits blocking the orifices


What can you use to measure shower water?

A flow meter.


What are some good designer brand shower heads to consider?

My shower head has low flow issues and is making showers uncomfortable. What kinds of shower heads would you recommend for faster flow but still aesthetically pleasing?


Why would 1998 harley Davidson electro-glide leak gas from the back hose that goes from tank to fuel injector system?

i had the same issue some time back on a 98 Road King Classic. Ended up being the back flow preventer between the fuel line and the tank. i fixed my by removing the fuel line on the left side of the tank. this is very easy. move the hose out of the way. now the fun part. the back flow preventer screws into the tank. it can be accessed after the fuel line has been removed as described above. the leak could be coming from the seal on the backflow preventer or it may just need to be tightened. there is a special tool that can be purchased from harley but i made a tool by taking wood chisel and grinding the edges down to fit the slot in the backflow preventer (bp). be very careful not to compromise the threads for the fuel line. i took the bp out, put a new seal and then used some thread sealer. tighten the bp up, reinstall the fuel line and hope for the best. hope this helps. greg


Why should you have low flow shower heads?

to conserve water


How is a Vichy shower different from a regular shower?

A Vichy shower is different from a regular shower due to the distribution of water flow. A Vichy shower has a metal arm with several shower heads running parallel to the ground, allowing the person to shower while lying down.


What shower head uses the most gallons of water?

Standard high-flow aka unrestricted shower heads made before 1995 were water-guzzlers. As of 1995 shower heads must be low-flow, with a rate of 2.5 gallons per minute.


Why should you use a low flow shower head?

To conserve water.