Wtb Auto top off

bfsbiocube

Copepod
M.A.S.C Club Member
#5
I have the Digital Aquatics float switches (2), mounts and toms pump for $30. Requires DA controller (I also have an RKL for sale) and SL1 module.
 

zombie

Dolphin
M.A.S.C Club Member
#8
A used jbj or the hydor are honestly your best bet. It sucks to have to spend a little over $100 for an ATO, pump, and reservoir, but it is well worth it. Mechanical float valves are notorious for failing in the on position wheras ato units have some failsafes built in to prevemt overfilling. Do you really want to risk losing hundreds of dollars worth of livestock to save a few bucks?
 

zombie

Dolphin
M.A.S.C Club Member
#10
If you are really comfortable without failsafes, then why dont you just get a water jug, a float valve, and some 1/4" tubing from home depot? I seriously doubt you will find a gravity fed one here or even online. You have got to be the first person I have ever seen use one of those (granted Ive only been in the hobby for 2 years)
 
#11
zombie;317082 said:
A used jbj or the hydor are honestly your best bet. It sucks to have to spend a little over $100 for an ATO, pump, and reservoir, but it is well worth it. Mechanical float valves are notorious for failing in the on position wheras ato units have some failsafes built in to prevemt overfilling. Do you really want to risk losing hundreds of dollars worth of livestock to save a few bucks?

ato pumps get stuck in the on position, float valves get stuck, seen it happen twice before myself, its an inherent risk for the convenience factor of having the ato
 

zombie

Dolphin
M.A.S.C Club Member
#12
charleshardy5;317085 said:
ato pumps get stuck in the on position, float valves get stuck, seen it happen twice before myself, its an inherent risk for the convenience factor of having the ato
Thats why they put failsafes in them. The jbj for example can be set up such that one float switch activates the pump, a second float can act as an upper failsafe that will turn the pump off if the main float fails, and it will not let the pump run for longer than 3-30 minutes (based on user setting). Pretty much your only risk of failure is the relay contacts fusing, which takes 100,000 operations in the 95% confidence interval, and within that there is a 90% chance that when it does fail, it will fail in the off position. When I used to service swamp coolers, the average lifespan of a float valve was 3 years before it started leaking bad, and a saltwater environment is way harsher on moving parts than a humid environment. To each his own, but thats my 2 cents.
 
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FluidDesigners

Platinum Sponsors
Platinum Sponsor
#13
Awesome points! I love the JBJ and run one whenever I can!

zombie;317086 said:
Thats why they put failsafes in them. The jbj for example can be set up such that one float switch activates the pump, a second float can act as an upper failsafe that will turn the pump off if the main float fails, and it will not let the pump run for longer than 3-30 minutes (based on user setting). Pretty much your only risk of failure is the relay contacts fusing, which takes 100,000 operations in the 95% confidence interval, and within that there is a 90% chance that when it does fail, it will fail in the off position. When I used to service swamp coolers, the average lifespan of a float valve was 3 years before it started leaking bad, and a saltwater environment is way harsher on moving parts than a humid environment. To each his own, but thats my 2 cents.
 
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