Where do you get your propane tanks filled?

I know some of you fill your own tanks but for those of you getting them filled where do you go??
Costco fills them and I think and it's a good price but they have a flat rate.. It cost me 8.10 to fill a brand new 11lb tank. So even if you half empty tank you pay full price regardless.
Are there places that charge by how much they fill??
Thanks.

It must depend on location. I'm in Barrie and Costco here charges what they put in. Cost about $3-$4 to fill 5 lb tank

i believe every where is a flat rate as they have no idea how much propane they are putting in your tank. they go by weight to tell when they are full

+! I go to Costco by Hwy 400 & Hwy 7 where it is also just over $3 to fill a 5lb tank.

Key do you pay where you get it filled?
At my Costco you pay first and give the receipt to the filler..

The tank is on a scale so if it has half a tank they would know and you would just pay the difference..

The tank is on a scale so if it has half a tank they would know and you would just pay the difference..

the scale is only to let them know when its to max propane volume. most places are farm style scale with the slide weight they don't weigh the tank before they start to fill.

I use Costco in Oshawa and could swear I only pay what I get filled. Now you got me rethinking my purchases.

Canadian tire gas bar is 9 dollars flat rate.

I use Costco in Oshawa as well and you only pay for what it takes to fill the tank

I fill my 5 pound tanks at Costco Orillia.3$ to fill a 5 pound tank.You pay by the liter.

X3 on Costco Oshawa... got three 20lb and a 11lb filled last week. Fill first then take the ticket/receipt inside to pay

This makes sense, pay for what you get. BURLINGTON Costco you pay first for your size tank which makes no sense unless your tank is completely empty..

Key do you pay where you get it filled?
At my Costco you pay first and give the receipt to the filler..

At the Costo store where I do refill, it is refilling first, then a receipt is printed per actual amount refilled, and then I go to pay with the receipt, and then return to pick up the refilled tank.

I feel better about my purchases now. Thanks for the input.