Jeffrey Dustin wrote:I bought one of these ram pumps a while back and have yet to get a drop out of the delivery line. I've been trying to contact Mr. Landis with no luck. Very frustrating. The darn thing is in my stream and just sitting there. I can't get the ball valve glass ball to do anything. I need some help.
We worked with Harry Landis for many years on the design of the Landis Hydram. Harry died about two years ago. We are happy to answer any questions that you may have regarding the Landis Hydram or about specific site installation issues. We are now manufacturing and selling the Landis Hydram directly from our Rogue River Oregon shop. We can be contacted directly by using the Contact tab on our website:
Here is more information regarding Harry Landis:
Here is our hydram performance calculator with considerable information about hydrams in the associated instructions:
Jeffery, it sounds like you either didn't receive or you didn't read the hydram installation instructions. Jesse's response to you sounds correct...thanks Jesse. You first need to adjust the glass ball cage height before starting the hydram. You also need to have back-pressure in the delivery line to keep the pump operating. Hydrams are very simple devices, but the physics that allows them to operate is extremely complex. So you do have to satisfy all the hydram operating constraints (primarily Fall, Lift, drive line diameter/length, delivery line diameter/length and operating frequency) to achieve effective and reliable hydram operation. We have many Landis Hydrams that have been in continuous operation for over 25 years without any maintenance at all.