Evaporation Control

[HappyGeorge]

Right here goes.

The one constant in the system is the return pump, it will run at X lph no matter what right up until the point it runs dry. So as total water in the system reduces due to evaporation water is pouring down the weir at a constant rate and into the sump. The level in the display will drop slightly thus reducing the amount of flow over the weir and into sump, thus reducing flow through sump and so showing as a drop in the final chamber of the sump, which is where an auto top up normally measures the drop and takes its trigger level from.
At least that's how mine shows, no noticeable drop in display as in the relatively small sump chamber the drop shows much quicker.

 

[woody88]

Haha he don't care! Im working during the day but get bored so pop on which I shouldn't but I have free internet on my phone lol!

I will vacate the site then shall I! Or create a new account to ask questions on haha!

Sorry for asking so much I just keep thinking of things and it just seems so quiet here I thought people would like something to answer!

I knew I couldn't really stop it lol! Is it better to do daily top ups then? Will I cause problems adding the RO to the tank directly? Just if I add to the sump the sump level will then rise!

haha I have seen a detailed way to make your own and I could possibly follow it but would no way want to risk it! haha Im just too scared

No No don't apologise!.....Fire your questions away. I enjoy answering them!...............Makes me sound like I know what i'm on about!

Yeah, just pour the plain RO into the main tank until your happy with the level!.......It will balance out with your sump anyway!

 

[Uriel]

Surely the simplest way to say this is. The return pump will run till the sump is dry but the water will only flow over the overflow if the water level is higher than overflow. So the evaporation always shows in sump as level in display is constant. 1 other thing I thought of which you might have problems with weeza, is as your sump hasn't got any baffles the water level will drop with evaporation and most in-sump skimmers require a specific level of water to run.

 

[weezawoo]

Actually to be a bit awkward lol, I don't have weirs! Yeah I missed out a few bits when I set up my tank haha!

I just have a strainer sat on a tank connector running to the sump. This means I don't have the level of the tank pushing water to the sump, the water level is about an inch above the hole so the only way it will do as per everyone is saying (which makes perfect sense to me now) is if I have a huge evaporation.

So does this mean I will just have the display level change and top up to there then
I like to be different (and awkward) to everyone else! haha

Thanks everyone!

Oh also the skimmer I have ran in water only 1 inch above the pump when I tested it! It can run as a hang on skimmer too!

 

[HappyGeorge]

As Woody says then just pour it into the main display or you can tip it in the sump, won't matter at all as long as the skimmer and return pump have enough water that's the only real issue.

 

[weezawoo]

Ok thanks!
I feel a fool now!

 

[HappyGeorge]

Well to quote the Queen of Marine "The only foolish question is the one not asked".

 

[weezawoo]

In that case i have more haha