Watersaving: Shower Mixer Alternative
Intro: Watersaving: Shower Mixer Alternative
Cape Town is in the middle of a massive drought, so everyone needs to save water. Having a mixer in your shower enables you to turn the water on and off in short bursts, minimising the water usage. However, if you don't have a mixer, it is quite expensive to install one, and having to constantly open and close two taps and regulate the temperature is just not feasible.
Installing a small ball-valve inbetween the showerhead and the water pipe allows users to open the taps to the desired temperature, but cut off water supply with the flick of a switch. So you wet your body, turn the water off, soap, turn water on to rinse (apparently the technique is called a "Navy Shower/Military Shower").
It takes about 5min to install, and costs under R70, and by monitoring my water use, it is evident that it saves a LOT of water!
STEP 1: What You Need
- A shower
- An in-line ball-valve with a male and female side (15mm diameter) (Here's one I found online, but any plumbing/building supplies store should be able to help you)
- Thread seal tape
- Optional: Water saving showerhead or InLine Flow Controller
STEP 2: Thread Seal Tape Clockwise Around the Male End of the Ball Valve
The thread seal tape helps to avoid water leaking through. It helps to put the thread on in a clockwise manner, because that is the direction that you will fasten it onto the showerhead.
STEP 3: Fasten the Ball Valve to the Showerhead
STEP 4: Wind Thread Tape Around the Pipe in the Shower in a Clockwise Manner
STEP 5: Attach the Showerhead With Ball Valve to the Shower Arm
STEP 6: Showering
When showering, first open both taps until the water reaches a comfortable temperature. Then use the newly installed valve tap to cut off the water to the showerhead when not needed (e.g. when soaping).
29 Comments
Stavros! 5 years ago
If I remember right, the hot water pipe has a slightly higher water pressure than the cold water line, so if both lines are open and connected, the hot water will push back and into the cold water pipe, so when you open that valve it will be hot water only at first.
lifeinbeats 6 years ago
lond 6 years ago
/// Marcus
EmmettO 6 years ago
pgs070947 6 years ago
There is a problem with quarter turn valves that relates to construction, water quality and usage.
Cheap valves use cheap materials like poor seals and stuff like plated brass balls. For long term use, get a decent branded valve with a stainless steel ball. Cheap valves corrode in aggressive water and leak. They also tend to seize up, hence the usage bit.
Another bit of advice, valves come in normal bore or full bore. If it's a low pressure system, get a full bore valve.
There are other more expensive options like solenoid valves that can be electronically timed and would need no user intervention.
pgs070947 6 years ago
On droughts generaaly, one of the problems is using potable water for tasks that don't need highly purified water, like flushing the lavvy - rain water (collect as much as you can) or "grey" water is all that's needed and if you're not squeamish, you really don't need to flush it every time.
The only potable water I use now is for drinking and food preparation - everything else is either reused or from water butts.
AndrewR62 6 years ago
"if it's yellow, let it mellow, if it's brown, flush it down"
pgs070947 6 years ago
stessel 6 years ago
Cindy-LeighG 6 years ago
CharlieP44 6 years ago
pykler2 6 years ago
JoBCCan. 6 years ago
Spirrit 6 years ago
jbarnhart1 6 years ago
Alternatively, you could install a single lever handle valve, but as the post says that would be much more expensive. And you couldn't install one in a rental situation, where you could do this fix.
Spirrit 6 years ago
Replicator 6 years ago
stessel 6 years ago
I'm surprised no one has mentioned the old hippie standard:
"Save water, shower with a friend".
Tanzer26 6 years ago
Gordonian 6 years ago
If the cold water supply is at a higher pressure it may force water into the geyser and result in water flowing out of the pressure release valve on the geyser.
A solution is a non return valve in the hot water supply between the geyser and mixer.