Hi all,
please excuse me, for not introducing myself in the proper way.
But as I agreed in quoting me, I guess it's only fair to reply on
replys on that ;-).
Quote:
Originally Posted by hma  Tut mir Leid Ralf aber da muss ich widersprechen! 
I am so sorry but there I must contradict Ralf. Indeed, the AquaMedic has really only two wheels, but if you use 2 check valves (no return valves) on each end, one run back from liquid is absolutely impossible therefore and the dosing accuracy is guaranteed absolutely. |
Hi hma, great to meet you here.
Well, this is only my opinion, but I think, that a hosepump, that does
not hold the hose tight, is a missdesigned product.
Shipping the workaround for that together with the produkt does not make it any better IMHO. It does only say, that the manufacturer already know the problem but does not do anything against it.
Maybe I should have used different valves from another manufacturer.
Dosing about 2 liters per Balling solutions a day resultet in:
- the NaHCO3 valve got stuck after 1 month
- the CaCl2 valve got a "run through" after 2 month and due to the fact, that the hose unfortunately endet half a cm under the watersurface, about 100 liter reefwater got on my floor.
That, together with the same experience from a guy on reefcentral brought me to my judgement. I tossed the pumps, not willing to sell it to another person on e***.
Seems, that you're happy with the pumps. Great, but I cannot share that experience ;-)
Thanks, best,
Ralf