Water level indicator

[Piers]

Play d'eau's has four water tanks, all manifolded. A site tube shows the collective level.

All I'd like is 'something simple' which can sense when the water level in the site tube reaches goes below a set level, to activate a warning light.

Is this possible?

 

[superheat6k]

There are devices with LED/s connected to resistor/s that will turn on when the water is above the sensor level/s, so a signal reversing relay could be used I suppose. i.e. turn the LED on when the level falls.

 

[Freebee]

a proximity switch can be fixed on the sight tube and tuned to sound an alarm or warning light

 

[Piers]

Thanks for the info, but are there any suitable products, somewhere?

 

[longjohnsilver]

Play d'eau's has four water tanks, all manifolded. A site tube shows the collective level.

All I'd like is 'something simple' which can sense when the water level in the site tube reaches goes below a set level, to activate a warning light.

Is this possible?

Interesting question Piers, I'm also interested in the answer.

 

[adey]

How about http://tektankslimited.com/self-adhesive-non-invasive-sender-9003-1626-p.asp
Monitor all tanks with http://tektankslimited.com/8-tank-monitor-9000-1679-p.asp

 

[Plum]

Play d'eau's has four water tanks, all manifolded. A site tube shows the collective level.

All I'd like is 'something simple' which can sense when the water level in the site tube reaches goes below a set level, to activate a warning light.

Is this possible?

Interesting idea.... How about this?

https://www.balluff.com/local/us/solutions-and-technologies/level-sensing/ and select "Fluid detection with photoelectric fork sensors"
For sale here https://www.ebay.co.uk/itm/Balluff-...tric-Sensor-30mm-pnp-IP67-000342/253042707793

Www.solocoastalsailing.co.uk

 

[bixter]

Interesting idea.... How about this?

https://www.balluff.com/local/us/solutions-and-technologies/level-sensing/ and select "Fluid detection with photoelectric fork sensors"
For sale here https://www.ebay.co.uk/itm/Balluff-...tric-Sensor-30mm-pnp-IP67-000342/253042707793

Www.solocoastalsailing.co.uk

https://www.enovationcontrols.com/p...devices/l150-and-el150-series-level-swichgage

 

[Freebee]

www,stedham.com/LiqSightGlass.html

 

[Piers]

Apologies for being so quiet on this thread. I've been away. All is really helpful, but i think the www.stedham.com/LiqSightGlass.html is going to be the one to try. Seems simple and easy - perfick.

Thanks for all the help - Piers