If we specify a dolphin water treatment system for a cooling tower (2# 300TR chillers) do we need to specify a side stream filter also or is teh dolphin system enough?
So now you say you have one...why waste our time with vague questions are you trying to hang someone because you have sludge in your system and they didn't spec a filter???? when was the last time you cleaned the tubes, or tower? how dirty is your work environment?
Its becoming more common to hear about systems like these, Evapco has one. but when you dig into it, it not a cure all. If you don't have personal on hand to property maintain the system and clean it, all those fancy adds is a waste of money. You may want to look at your operating procedures and talk to your chemical Rep before you dump more money into a system you know nothing about.
I'm not being nasty, but when you ask questions like that, it would seem your fishing for something and its not right. Are you a service provider, or a end user?
next time just ask what you want to know, like "hey they installed a very expensive dolphin water treatment system and I have sludge in my chiller"... than we would have address the question differently.
Sidestream is one way, but requires cutting into the condenser loop piping (unless there are already flanges in place). You can, instead, install a free circuited sand filter that draws from the pit with it's own pump, and then discharges back to the pit through spray nozzles. This will provide sediment fighting turbulence in the pool - allow the tower to be filtered with the system down - and can likely be done entirely in PVC, making install both cheaper and faster. I also like the separate pump because you can run your chemistry sampling and injection on this loop, meaning your chemistry is maintained regardless of tower operation or not.