High Pressure vs. low pressure

[CompuDude]

For me, when looking at tanks, the first issue I look at is availability of overfills for LP tanks. Once that's determined, I know whether I should be focusing on HP tanks or LP tanks. Cost is important, but for a tank that should last over a decade, $35 really shouldn't be the deal breaker.

Once I decide on HP vs. LP, the next thing is to figure out how much gas you actually need, so you know which size tank to be shopping for.

LP85s and HP100s are practically the same tank, although the LP85s are a smidge cheaper. They're not as dramatically cheaper as they used to be. ($310 vs. $345)

But if I can't be guaranteed I will get at least 3100 psi, if not more, in my LP85 tank, I'm always going to be getting less gas than I will in my HP100 tank (assuming I make the LDS fill it to capacity, which they may grump about if they're stingy with their compressor, but can't really say no to with a proper HP tank). If I'm ok getting smaller amounts of gas, that's one thing, but if I'm really looking for 100cf of gas (or close to it), having the LP tank is going to be problematic for me, and the HP tank is a better choice, even though they're otherwise nearly identical.

I know Rainer really likes the LP tanks, but I just see the HP tanks as being more reliable, from a filling standpoint, in the sense that you never have to worry about fills, no matter where you travel to, because you'll always get as much, as quite possibly a good bit more, than you will with the otherwise similarly-sized (exterior/weight) LP tank.

[Rainer]

Wow, prices really HAVE come up on the LP85s. They were $199 last year.

At $35 difference, IF transfilling and PP blending are not concerns (we do both extensively ourselves here in MA), then the HP100s now would appear to be the better deal (assuming you aren't somewhere where compressors top out at 3000).

[cummings66]

I have doubled HP100's and HP120's. LP cylinders do not normally get an overfill in my neck of the woods so LP cylinders don't make as much sense for me. I would have bought a couple LP85's but the deal fell through.

[cpd123]

Wow, thanks for all of the responses. I think I'm going to go with the LP 95, mainly because the closest filll station near my place can't go much over 3000 psi. Thanks