I have the three filters stacked in my reservoir, I simply put my hand inside one of the plastic bags from Walmart and reached down and pulled the filters out one at a time. I had a drain pan underneath the reservoir to catch the dribble and a small trash can to drop the filters in as I took them out. I lost a little over a quart of fluid in the filter change out due to the fluid that was still in the filters but it didn't make much of a mess at all and took about 15 minutes including cleaning the lid, replacing the "o" ring installing the new filters and putting the cap back on.
The service manual says to only drain enough fluid out to expose the bottom filter, but if that's fine, I would think simply reaching in and pulling them out is just as good and saving the 3 or 4 gallons ($15 a gallon for Dexron III) seems like a prudent thing to do.
I am not sure, but I don't remember a recommended fluid change schedule for the Dextron III that is used in my system and I haven't changed the fluid out but I should probably check to see if it needs changing. The system holds 11 gallons in total so it would be a bit of a chore to drain the entire system so hopefully its only the filters that need servicing.
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Bob & Pearl
2007 Monaco Camelot 42' PDQ
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