I bought a Stenner dosing Pump Model 85M/170DM for ….wait for it …Fourteen Bucks!
This pump has a range of 1.5-514.8 Liters per Day.
congrats on a $14 stenner pump purchase, there are all sorts of things you can use that for....that's the good news...
I was going to buy that stenner pump (New) since it's about the same price as buying a used CP setup off ebay. I called stenner and asked a few questions and they directed me to an entirely different pump. They said that model/series of pumps are not meant for 24/7 continuous use. I can't remember all the specifics, since I spoke to him back in late Jan/ early Feb.
Here is what stenner recommended (~$900 and you can find for about $700):
http://stenner.com/products/pumps/svp-series
Is anyone else using the stenner pump continuously? If so, for how long?
I ended up finally buying a CP 7520-50 off ebay yesterday and a 7518-10 head! I went with this model because CP has all the wearable parts that are likely to fail- brushes and few gears, so it is easy to fix if there is a problem. Hopefully the one I bought is in good condition. I had also been holding out for a brushless, but my patience has worn out...I must say, the people at CP are incredibly helpful and answered a lot of my questions. Great company. Stenner too. Just solid, helpful people.
BTW, I also remember reading somewhere in this thread the 6-600 rpm motor is preferable because in theory it is a stronger motor (due to higher RPM capability) and we are only running these units at about 17rpm, so why not get the higher RPM, stronger motor. IIRC from my discussions with CP, the 6-600 rpm has a gearing system that can wear and the comparable 1-100 RPM units have the same motors as the as the 6-600, so no need to hold out for the higher RPM motor. The gearing system is easily replaced. Maybe I'll give CP a call to confirm to make sure I am not mistaken. If I am, I apologize. Either way, both are very solid units!
Thanks to Dennis as I originally found out about this idea from his build thread! And thanks to everyone else, particularly tkeracer619, for the effort with this thread. Good stuff. Just an awsome thread :thumbsup: