Originally Posted by lwcm
Don't have plans drawn up yet; just thoughts.
With the clogging issues you described I was pondering using a series of progressively fine filter screens. Or perhaps a false bottom over a pickup tube with SS braid over it. MAYBE a third line of filtering if needed.
Would need two pumps but (I think) the HLT feed pump into the exchanger could be something like this: http://www.harborfreight.com/1000-gph-bilge-pump-66095.html
Nice and cheap.
The main thrust of the thought is to maximize value by having parts of the brewery do double duty.
did you ever give this idea a try? Are you still considering it? I am considering the same thing (using a DudaDeisal plate chiller for mash recirculation) and would appreciate any additional thoughts you have had on the subject.
From what I have understood:
-double duty out of one high-performance plate chiller
-faster stepping times (since reservoir can be far smaller than a full HLT)
-smaller amount of wort inside than both CF and IC (does not matter much if draining through gravity)
-need a filter of some sort to avoid clogging by grain particles (biggest disadvantage versus CFC)
-added cost and cleaning complexity of having a filter (though can be used for wort chilling as well)
-cannot be broken down and inspected (kind of a wash with copper CFC - both have a disadvantage versus IC and SS CFC in this respect)
--need a second pump (same as a CFC and typical HLT recirculation system, so basically a wash)
-the biggie - an absolute nightmare if you allow the plate chiller to get clogged in the middle of mashing - this is the biggest disadvantage versus either CFC of IC (but if you do a good job adding the filter, should never occur
-more complex / time consuming to clean??? I am not clear on this - only those who have used two or three types are really in a position to comment...