okay i filled the bottle two days ago- ran prolly 7 or 8 times over the course of the two days and i didnt think it was out- i took the bottle out and checked it- it had a thin white flame looking nitrous come out- is that a sign of a low bottle? and it was bogging real bad i could smell alot of gas checked everything seemed fine- Yall think i should just refill and see if it works again?- says i still have about 2lbs in the bottle when i weighed it

 

Yep, your not going to get those last couple pounds out, not without a richment fight and a really good heater Just like when you refill, the 56lb cylinder only fills 4 bottles and then a little more. Rarely get 5 x 10lb bottles out.