Automatic Top Up Mechanism

[OscarWilde]

Hello all

I will shortly be moving in to a flat by myself and wanted to plan in advance for dealing with top ups for periods when I am away for a week or more.

Given what I remember from playing in the bath and GCSE Physics I was wondering if somthing like this would work? (Plumbing in to the mains is not an option by the way)

The top up vessel is an arbitrary size but the key thing is that it is air tight, open at the bottom and submerged to the minimum water level of the main tank.

My theory is that as the water level falls below the edge of the opening at the bottom of the top up vessel, air will flow in and the extra water will top up the tank...

Im sure there is plenty to take in to consideration but how does it sound in principal?

Thanks

 

[three-fingers]

Why don't you just use a float switch, a bucket/barrel/tank or water whatever full of RO/rain water and a pump?

Much, much easier.

 

[OscarWilde]

Why don't you just use a float switch, a bucket/barrel/tank or water whatever full of RO/rain water and a pump?

Much, much easier.

Ah, I'd never heard of them. Thanks. Done a google and see what you mean. Does anyone have aphoto of a similar rig in action?

Thanks

 

[Buddyboy67]

Check for the tunze osmilator systems..expensive but very reliable auto top up systems

 

[three-fingers]

No photos, but Tunze, Aqua Medic and Deltec all make their own systems like this that you can pick up for around £100. Google them, you'll probably find pics, they would be easy and cheap to replicate.

Look at float switches that are designed for getting rid of water on boats, last time I looked there were quite a few cheap on eBay.

I designed a crude automatic water change system for my room, a top up system would be much simpler and cheaper than this:

 

[SkiFletch]

While I'm sure that works great for freshwater setups, we don't use tapwater in marine systems. It's a little more complicated with a marine setup.