top off system?
- Thread starter drillsar
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DaveAngie79
Premium Member
the only time your salt level should drop is if you have a leak or if you do a water change other wise all you should need is a top off system and maybe a feeding system depending how long you will be gone
jcarnahan12
New member
I think what he is suggesting is having a top off that monitors SG, so that as water evaps and sg rises the top off would kick on to fill the tank vise just the pump starting at a specific water level.
I don't know of a system out there that works on that premise but what you can do is monitor your SG as water level drops and at the SG that you want you pump to start, mark the tank. Then place your switches such that the pump kicks on and off at the marked levels. This is the only way that I know of that you could accomplish what you are trying to do, IMO.
I don't know of a system out there that works on that premise but what you can do is monitor your SG as water level drops and at the SG that you want you pump to start, mark the tank. Then place your switches such that the pump kicks on and off at the marked levels. This is the only way that I know of that you could accomplish what you are trying to do, IMO.
MarkD40
New member
I have a reef type tank in the basement as my sump. I got a KENT marine shut of float and installed it with the float in the overflow chamber so it doesn't get buffeted by my pwerheads in the tank. I put a TEE in the product water line from my RO/DI unit. One tube goes to a 50 gallon trash can also equiped with a shut off float, the other to the float in my sump. When the water level in the sump drops fresh water bleeds in from the RO unit. Since the evaportated water is constantly replaced my salinity stays vary stable. Great when I am out of town.
This could easily be modified to a sump that does not have an overflow by attaching the float to a piece of plexiglass and clamping it to the side of the sump.
This could easily be modified to a sump that does not have an overflow by attaching the float to a piece of plexiglass and clamping it to the side of the sump.
jcarnahan12
New member
Do you have any pics?
Mike 1911A1
New member
I don't see a need to top off based on salinity. If water evaporates then salinity increases. If you check water level, you are effectively checking salinity and if the water level drops to a certain point (salinity increases to a centain point) and you fill with RO to a certain point then you will decrease salinity. No need to check salinity...Just check water level IMO.
Mike
Mike
MarkD40
New member
mwa1007,
That's my point. Once the salinity in your system is where you want it the only way it will change is through evaportation and to a much lesser extent via salt creep. By "continually" replacing evaporated water my salinity stays ultra stable. I am not topping off based on salinity.
That's my point. Once the salinity in your system is where you want it the only way it will change is through evaportation and to a much lesser extent via salt creep. By "continually" replacing evaporated water my salinity stays ultra stable. I am not topping off based on salinity.
Mike 1911A1
New member
Mark,
But you are accomplishing the same thing if you top off with RO when the level is below a certain point. Don't need to measure salinity but get the same result.
Mike
But you are accomplishing the same thing if you top off with RO when the level is below a certain point. Don't need to measure salinity but get the same result.
Mike
