Apex DOS or Stenner Double Head

[elFloyd]

My AWC using a dual head Masterflex is not working out... input and output doesn't match. I am at a decision point: Do I replace to Masterflex with a Stenner or an Apex DOS?

I like that the DOS meters input/output, but the Stenner has more muscle. I'll be lifting about 8' then a 50' run through the attic.


Does anyone have enough experience with the DOS to know if it is strong/durable enough?

 

[vhuang168]

I've been toying with the idea of a dual head Masterflex and found out that I would need adjustable heads to match the input/output.

Did you use heads with adjustable occlusion?


Sent from my iPhone using Tapatalk

 

[elFloyd]

No... just felt the Masterflex was old, and the heads old too. But adjustable occlusion heads may be the way to go. I would hate to buy the new Stenner only to have the same problem.

 

[Breadman03]

You will want an adjustable occlusion head. Basically, you're dealing with (manufacturing tolerance variation of the pump head+variance of the tubing diameters)*pump revolutions.

I use DOS and it works just fine, but the difference between a DOS and a Masterflex/Stenner/Watson Marlow is like night and day.