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Is anybody using solid chemicals to treat their chilled,hot or condenser water systems? I've always used liquid chems in the past and am a little leary of the newer solid treatments. I have talked to a couple contacts and they say that they are happy with the cost of shipping and storage, but...

I was wondering if there was any solid idea's or evidence on motor bearing lubrication procedure. I have read several different recommendations on the proper way to grease a motor bearing. Some say shut the unit down to grease, but the majority that I can find say lube it while running. I'm on...

I am having a hard time finding a company to perform failure analysis on an EPDM componant that was installed in a hot water piping system. Has anyone had any experience with this. Alot of places will attempt to do the work, but do not have any experience with it. Any help would be usefull.

We have done some testing on a newly installed pump onsite and found that the balancing firm appeared to leave the pump off the end of the curve. I have seen pump curves that show that when a pump goes off the end of the curve it comes back on itself as far as flow goes, but at a lower head. It...

For a basic handbook I use the "Engineer in training reference manual" by Michael R Lindeburg. It is a preperation manual for the PE and covers alot of topics, some in more detail than others.

Let me add a little more info. We have checked allignment and chemical compatibility. The expansion joint was installed per manufacturers recommentations. Pending 3rd party it appears as if there are heat cracks in the rubber/EPDM.

We have recently had some failures on EPDM expansion joints in Hot water systems. We are running below rated temp and pressure for the joint, and are still seeing failures. I have talked to some other companies about this and they too have had this experience. Does anyone out there have similar...