Twodose
Active member
After all the talk about the blue and grey foot valve’s thread I called tech support at hydro. I was told that the discharge tube (11) should be above the highest level in the tank, in the instructions it says that “to prevent foaming, be certain that the solution level will always be above the point of discharge”. < So this is opposite to what I was told by them. Also #2 in the instructions says that “since the 506 does not have a siphon breaker you may want to drill a small hole 1/8 or ¼ “ ID in the discharge tube above the highest solution level and below the discharge end of the (9) eductor, this will allow the discharge tube to drain after each cycle”. This would not happen if the discharge tube is below the solution level. It seems to contradict itself. I have always put the discharge tube to the bottom lowest level of the tank to prevent foaming; today I was told I am doing it wrong. Also we talked about the blue check valves going bad in one day; he said that should never happen because every one is checked to make sure it is working before it is shipped out, and they should not fail in one day, and should be changed every 6 months.