GHL Stand Alone Dosing Pump Price Drop!
 

Hey guys, if you are looking for a stand alone dosing pump the price just sweeter from GHL.

http://www.progressivereef.com/prodi...adosing-lg.gif

Dosing Unit SA 2, USA/CND dosing pump unit PL-0505 $324.00
Dosing Unit SA 3, USA/CND dosing pump unit PL-0506 $399.00
Dosing Unit SA 4, USA/CND dosing pump unit PL-0507 $489.00

These are fantastic dosing pumps and offer a lot more functionality and quality over other brands. They are all made in Germany using high quality components and have already proven themselves to be a reliable, precision instrument.

All of the stand alone pump dosing units can be upgraded to 4 pumps in the master unit, with the ability to slave an additional four pumps using a slave unit (for a whopping total of 8 pumps controlled from a single point).

Warranty is 2 years from GHL, but even out of warranty issues are easily covered. All parts are available for purchase at the same rate we get them for so you can repair your own unit for minimal cost (in the event of non-covered damage like getting it wet).

Check out the following link for purchase!

http://www.progressivereef.com/ghl-dosing.php

do these units ever lose their accuracy - ie. do they need to be calibrated every once in a while?

do they back siphon?

Mine hasn't & it's been up since new years.

I calibrate mine after I replace any tubing that starts to harden.. usually from high Ca additives like Kalk or Calcium Carbonate. But they dont normally wander unless something is starting to go (like the tubing).

I've never had mine back syphon, but the potential does exist. I just mount my tubing above the water line so it can't pull anything back. generally good practice for any equipment that pushes fluids.