stove preasure
I had a 1980 30+ w/alcohol stove, also. We used to pump it to about 25 PSI and that would give a reasonable time period between pumping. would function fine to about 6 or 7 PSI. We would only add 1 to 2 quarts at a time as the more air volume you keep in the tank the longer you can go between pump-ups, also. My wike baked pies, cobblers, ham's, etc. in our's when we would go on our cruise to the North Channel. Functioned very well, all in all. Check to see that the hose that goes between tank & stove is in good condition. Our's was deteriorated badly!
Have fun & sail fast
Bud E34 "Escapade"