Seems that cleaning the hardened fix-a-flat material from a car tire is a do-it-myself type of effort.
Remove the car tire from the rim using a 2-lb mason's hammer, and a 3' crowbar.
Scrape out and clean the hardened fix-a-flat material from inside tire.
Bring tire and rim to car repair to get it plugged and reinstalled on rim.
Considering that one tire installed now costs me about $145 (110 & 35-install) and four new tires cost $580, this is one way to save money and keep rolling on the fix-a-flat tire.
Is this really doable? It seems that one flat tire repaired with fix-a-flat can end up with having to replace all four tires on an all-wheel drive car which is very common, today.
Which local tire repair; Valvoline-Laconia, Tire Warehouse-Laconia, VIP-Laconia, Sanborn's Auto Repair, Mike's Quality Car Care, Meineke-Laconia, Wilson Tire-Plymouth , Walmart-Plymouth, Kevin LaPoint Automotive-Holderness, Currier & Sons-Holderness, Lovering Volvo-Meredith....... who will clean out the fix-a-flat material for no extra charge and fix the flat and install the tire for the standard $25-35 tire installation ....... who-who-who? ...... betcha at least one of these will clean out the fix-a-flat like it's no big deal and is a standard repair routine there ...... who

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With a tire mounting machine, cleaning out the fix-a-flat is probably very easy-peasy and only takes three minutes using a paint scraper.