inroughdia
i bought some tubing from a hardware store but it burst what kind of tubing do i need ? thickness of wall do i need? would stainless steel be cheaper ...? i need to make the end bend in the shape of a hook for cleaning gutters my pressure washer is 2900 psi ...... no go and amaze me this is why i come here .
meant to say now go and amaze me
Answer
Aluminum cannot handle high pressure all that well as you have seen. It will handle 2900 PSI if the wall thickness is thick enough. My guess is your first tube burst at the bend. Bending the metal will weaken it. Aluminum is not very ductile (bendable) so it tends to fracture easily when it is bent. You will have this problem even with a thicker wall tube.
Stainless steel would be far stronger and with the right wall thickness could easily handle the pressure and bending. The BIG drawbacks are the it is very hard and not easy to bend and also is very heave compared to aluminum. A 16 ft piece of 1/8" wall tubing would weigh more than 40 lbs. Not something you want to lug around all day.
The only thing I know that is light enough and strong enough is composite materials. They cannot be bent after they are laminated up so the bend would have to be part of the manufacturing process. Very, very expensive.
Good luck
Aluminum cannot handle high pressure all that well as you have seen. It will handle 2900 PSI if the wall thickness is thick enough. My guess is your first tube burst at the bend. Bending the metal will weaken it. Aluminum is not very ductile (bendable) so it tends to fracture easily when it is bent. You will have this problem even with a thicker wall tube.
Stainless steel would be far stronger and with the right wall thickness could easily handle the pressure and bending. The BIG drawbacks are the it is very hard and not easy to bend and also is very heave compared to aluminum. A 16 ft piece of 1/8" wall tubing would weigh more than 40 lbs. Not something you want to lug around all day.
The only thing I know that is light enough and strong enough is composite materials. They cannot be bent after they are laminated up so the bend would have to be part of the manufacturing process. Very, very expensive.
Good luck
Cleaning gutters/ siding SAFELY?
Sue
This weekend, a teenage boy and his mom (me!) will be on the roof cleaning leaves out of gutters, scrubbing the gutters themselves (algae) and using a powerwasher on siding.
We have a multi-level roof, and will be standing on a lower portion while cleaning the upper-level gutters at about head-height.
What safety equipment should I consider?
A friend who worked as a painter would set an empty bucket at the end of his scaffold platform, so that he would kick it BEFORE he walked off the end. So, I'll do that, but what else?
Algae is on the outside of the gutters (from a year of the house sitting empty, and the gutters overflowing regularly)
We will be installing plastic gutter guards/ screens while we are up there, too. (Good ideas!)
Answer
If they are inexperienced on a roof, tie a safety rope to them and to a place that will hold them in case they do fall, they can grab it. It is a cheap way to save a leg.
If the roof is steep, they will need it anyway, but if not, that should be sufficient.
Also, be careful not to stream the pressure washer too fine, or it will pit the siding. A nice wide stream should do the job.
Good luck.
If they are inexperienced on a roof, tie a safety rope to them and to a place that will hold them in case they do fall, they can grab it. It is a cheap way to save a leg.
If the roof is steep, they will need it anyway, but if not, that should be sufficient.
Also, be careful not to stream the pressure washer too fine, or it will pit the siding. A nice wide stream should do the job.
Good luck.
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