Auto Top-off System

[metfan581]

I found thi awsome link:
auto top off system
Note: I do not take credit for this invention.
Be careful
Do this on your own risk

 

[metfan581]

any idea
or comments
or anything

 

[Matty]

i think i might try it then i'll tell you how it goes

 

[Rooster]

The float switch would look a bit ugly, if you ask me ! I think I would go for either a 2 pronged water level electronic type, or some sort of infra red switch - for "neatness" but I am into electronics, so maybe I am biased !!! LOL (pun intended)

 

[sub.42]

The float switch would look a bit ugly, if you ask me ! I think I would go for either a 2 pronged water level electronic type, or some sort of infra red switch - for "neatness" but I am into electronics, so maybe I am biased !!! LOL (pun intended)

Hiya,

Most of the time you will need a three pronged float level probe and seperate controller. What you find is there is a requirement for a 'buffer' zone, between top level, and demand for refill, because of the rippling effect of the water. The level control probe has three prongs that are three different lengths, in asscending order. You start with all three prongs immersed, the water level begins to drop, and the water leaves the top prong. The water continues to drop until it reaches the end of the second prong. When it leaves the second prong, the controller tells the water solenoid to fill the tank back up to the top prong, and so on. This stops the float from 'chattering' the water valve, and causing 'bouncing surface' problems.

sub.

 

[andywg]

Also, except on large systems where evaporation between water changes is a problem, it isn't that necessary.

If you incorporated a slow drain so that the tank is perpetually in a WC then it would be good.

My problem is that anything that can go wrong, will go wrong. Be it a float swtich jamming, the relay malfunctioning... I would want to make it as low tech as possible and to have a nubmer of back ups. Just for piece of mind.