From the APTA instructions...
"Using a bicycle pump or compressor with a pressure gauge reading at least 150psi, pressurize the tank. Pressure required varies according to the height and distance desired. ......Pressure exceeding 200psi is not recommended and could result in failure of the...
It was a rope runner (not a wrench) and even though the owner didn't know it, the RR will descend normally without the spring.
I learned SRT and would have given up immediately if I had tried to start with a blakes and hip thrusting.
If I ever need a bail out due to equipment failure, I'll be...
I recommend the Topeak Joe Blow Ace pump for a hand pump. It's a bit pricey (~$107 on amazon) but will get the APTA up to higher pressures quicker and easier (easier being relative) than other pumps.
Put this in the "just so you know" category...not to be used except in case of 'in tree spring failure'.
While your choice not to descend on it was good, the RR actually descends normally without the spring and in a emergency can be used to ascend if you tend the upper arm (like a loose hitch)...
I am a recreational climber and have both the APTA and big shot. Both work well and I like them both but if repeat shots are needed, pumping up the APTA can get tiring. The big shot is quicker to reload and can use a wider variety of throw weights since there is no concern with "fitting the...
I did a search and still found them available on a few (mostly non-arborist) sites.
A few years ago, I tore a muscle in my right bicep right before receiving a Rope Runner. I refused to wait until I healed to try it out and was able to use my PMI chest roller to climb 'one armed'.
If you use a...
Yep...get a foot ascender...later, add a knee ascender. This will also set you up to switch to an SRT rope walker system with the addition of an ascender/descender (rope wrench, rope runner, hitch hiker 2, bulldog bone, etc) and most likely a different rope.
Sooner or later you will need a...
I have 9 trees around my property that I have left cheap throw line in so all I have to do is use them to pull up a climb rope and go. Used to have a few more in Ash trees before the EAB got them. All of them are in crotches 65'-85' up.
I didn't climb a few of them last year and found the trees...
I've been climbing with my diy "saka" ever since Richard first showed us how to make them and it has been very good to me.
I recently paid up for the latest SAKA largely because of the ascender of Richard's design and used it for the first time today. Not only does it improve on reducing...
Unless your APTA came with a butterfly valve, they are not the same.
In the photos, the yellow handled ball valve is what came on my APTA and the green handled butterfly valve is the one linked in post #27.
I have no idea and don't know what the longevity of the 175 psi rated valve will...
I think they recommend a 12oz bag with the APTA. I have used a 14oz bag as well. A 16oz is probably too big. You may or may not want to use a thinner line to match the smaller bags. The easier the line is for the bag to pull, the fewer pumps you will need and that can make a big difference if...
That's as far as I wanted to go in that red oak....and it's taken me a year of climbing to edge toward the top. I'm about 80' up with 12' of tree above me. The photo doesn't show that I was also tied off to another small crotch just out of the picture.