- Joined
- May 29, 2002
- Location
- Japan/Daytona Beach
ok guys im gonna paste some comments from email correspondance between me and hydor official Matt Herreid
you will find some of this interesting because it may make some of you happy and others sad
now about the L35 impellor and the L30 body
about widening the intake on the pumps via file or cutting ( note in doing so you may permenantly damage or ruin your pump by changing the suction patern from high to low preasure in the pump)
you will find some of this interesting because it may make some of you happy and others sad
I believe most of your issues pertain to the fact that the current Hydor Seltz series of pumps are intended to be used by aquarium and pond hobbyists. Ponds and aquariums are intended to support aquatic life. Part of aquatic life is detritus and solid particles. In ponds especially, solid particles are a regular hazard to water pumps and filters. Tight tolerances and bits of sticks and leaves are not a good combination. I think lengthening the impeller shaft would create problems for the average aquatic hobbyist, but I will mention it to Hydor of Italy.
Perhaps Hydor of Italy can look into making a Seltz version specifically for the PC cooling industry.
now about the L35 impellor and the L30 body
The L35 uses a unidirectional impeller and the new motor assembly used 19W. The L30 II uses a bidirectional impeller and the motor uses 27W. I do not believe the impellers are interchangeable due to the redesigned motor on the L35
about widening the intake on the pumps via file or cutting ( note in doing so you may permenantly damage or ruin your pump by changing the suction patern from high to low preasure in the pump)
I have heard of aquarium hobbyists widening the openings without issues, but I cannot really comment as it’s not something we would ever experiment with in our normal course of dealing.
Hi Dan,
Just a quick follow up with more information.
Hydor Italy is currently working on a PC cooling version of the Seltz pumps. I’ll forward your e-mail ASAP to the engineering staff.
Also, please inspect your L35. It appears that many of your issues were addressed in the creation of the L35. The flow cutouts are enlarged, and the impeller seating area has been redesigned as has the impeller.
Thanks again for your input.
Take care,
Matt Herreid