Need a water valve connected to a water sensor

Ideas, advice, tips, and tricks regarding shelter, shade, tents, and camping. Yes, this includes RV's too.
Post Reply
User avatar
sparr
Posts: 377
Joined: Tue Jul 07, 2015 11:01 am
Burning Since: 2015

Need a water valve connected to a water sensor

Post by sparr » Mon Jun 04, 2018 11:51 pm

I need to turn off the flow of water through a hose when another adjacent hose/valve/whatever runs out of water. Does a device for this exist? I can roll my own with a water sensor and a solenoid valve and a 12V battery, but would prefer something more robust if there is a commercial option (which I predict would be tiny and run on a 9V battery). This is for part of my shower plans for my camp this year.
If you want to make a reply about my personality instead of about what this thread is about, don't clutter this thread, post over here instead.

User avatar
Token
Posts: 3794
Joined: Tue Sep 02, 2003 2:55 pm
Burning Since: 2001
Location: Gold Country, CA

Re: Need a water valve connected to a water sensor

Post by Token » Tue Jun 05, 2018 6:53 am

Ambiguous question.

Is the hose that will “run out of water” - the trigger, pressurized or just flow with minimal pressure?

Is this all gravity fed or is there a pump?

My guess is that you will need to fabricate something custom for your rig.

If you can use water level, as in a float, the solution is easy - a valve from toilet tank installed upside-down will do just that.

User avatar
sparr
Posts: 377
Joined: Tue Jul 07, 2015 11:01 am
Burning Since: 2015

Re: Need a water valve connected to a water sensor

Post by sparr » Tue Jun 05, 2018 9:50 am

Simple plan is gravity fed. I can add a small pump somewhere along the flow if that would help make some other component work, and it wouldn't be terrible to have a bit more pressure at the shower as well.

A float would work fine as the standalone water sensor; I don't mind if it shuts off with an inch or two of water left in the bucket. But I don't think the toilet valve will help; I need to stop the flow of a different part of the hose when the water level drops, not the part right where the level is measured.
If you want to make a reply about my personality instead of about what this thread is about, don't clutter this thread, post over here instead.

User avatar
Traveller in Time
Posts: 675
Joined: Tue Aug 23, 2016 11:52 am
Burning Since: 2020
Camp Name: Neon Light Alley (should be: Camp Envy)

Re: Need a water valve connected to a water sensor

Post by Traveller in Time » Tue Jun 05, 2018 9:52 am

Garden watering automation parts . .
Dish/cloth washers parts . .
Dreaming a temporary world improving the default world



Not expressing yourself but embracing all other expressions is The Challenge




...I can make anything I can imagine . . . I just can't make _some_ things happen



Have some Free will

User avatar
Token
Posts: 3794
Joined: Tue Sep 02, 2003 2:55 pm
Burning Since: 2001
Location: Gold Country, CA

Re: Need a water valve connected to a water sensor

Post by Token » Wed Jun 06, 2018 12:28 pm

sparr wrote:But I don't think the toilet valve will help; I need to stop the flow of a different part of the hose when the water level drops, not the part right where the level is measured.
Think about this a bit more. It will do exactly what you want. An upside-down float valve will be always-open until the bucket drains, then it will close. The float in the trigger bucket is the measurement device, but the actual valve feeds your other path, not the bucket where you measure.

It would be a reliable low-tech way to solve your problem. Cheap too.

Keep in mind that toilet valves have the main filler line and the small trickle line for topping off the bowl level, so you would need to redirect both into your second circuit.

User avatar
BBadger
Posts: 5689
Joined: Wed Jan 19, 2011 10:37 am
Burning Since: 2010
Location: (near) Portland, OR, USA

Re: Need a water valve connected to a water sensor

Post by BBadger » Thu Jun 07, 2018 2:39 am

Yeah, they don't even need to be toilet float valves. Those hydroponic float valves would work great, controlling a different hose.
"The essence of tyranny is not iron law. It is capricious law." -- Christopher Hitchens

Hate reading my replies? Click here to add me to your plonk (foe) list.

User avatar
Canoe
Posts: 3078
Joined: Sun Jul 31, 2011 8:01 pm

Re: Need a water valve connected to a water sensor

Post by Canoe » Thu Jun 07, 2018 10:55 pm

Watch out for the ready made solenoid valves, popular in Arduino and Pi projects. They only work with a pressurized line; gravity feed has insufficient pressure.
Video games are giving kids unrealistic expectations on how many swords they can carry.
.
... but don't harm the red dragon that frequents the area from time to time. He and I have an agreement.

Post Reply

Return to “Building Camps & Villages”