[DK on the road]

I'd like to add a bit about the Microphlor LF210 air/water assembly. 
Things I've learned over the last few days while working on my unit;

If your toilet bowl is not refilling with much water, or it doesn't feel like the effluent is leaving the lower compartment below the flapper, your seals inside your air valve need to be relubed with silicon lube mentioned above in prior post. I have added some pictures below. In one picture, notice the clear tube that send water during the flush process (from the Vacuum breaker to the bowl). I found a small leak at the clear tube to air valve. I had already relubricated the air valve O rings,  So I went to remove the clear tube. The fitting at either end is fragile in that it came out of the bowl, so I had to glue it back in place. use a 2 part epoxy here. The clear tubing has an offset that puts unneeded pressure on the fitting at either end. I used the old brittle clear tube as a model on the work bench and placed low heat on my new (5/8" ID 7/8" OD rated at 50 psi) and tried to give it the +/- 3" offset, then placed it in cool water. It kind of worked.  Make note, there is a filter/regulator inside the plastic fitting that I re attached to the bowl that keeps +/- 50 psi in the clear tubing when flushing.

I also noted that the Vacuum breaker (the tall black cylinder on the left), was loose from the air valve (grey/black). Mine has a nipple that goes between the Air valve and the vacuum breaker. It turns out the nipple has threads going into the Air valve that is tighten into place by a internal 3/8" allen wrench. The other side of the nipple is just an O ring seal on the nipple, causing the Vacuum breaker to not stay in place unless the clear tube would restrict it from shooting off. Not a good design, Or a prior owner did not replace with the proper parts. Anyway, I threaded the nipple into the Air valve and used 2 part epoxy from O ring, up to the air valve. never allowing any to be inside or near where water will be. 

I now had a positive connection at the bowl, a new Tube and connecting it to the Air/water valve and a good connection to the Air valve and vacuum breaker.  But I still had a very slight water leak at the grey barbed fitting. I thought at first it wasn't tight enough, No, darn, it was the barbed fitting, it's partially glued into place, So I removed the whole assembly again and reattached the barbed fitting with PVC primer and glue. 

I was able to do all this work while the porcelain bowl remained in place.

After about 4 R & R practice runs, It works perfectly. The front bowl fills as much as our rear bath bowl. BTW My wife really wanted a Bidet seat in our coach, so in June I installed a Bidet seat on the front toilet. I will do another blog on that.