sup'airball bunkers come with a 12 month warranty against manufacturers' defects. however, some field owners maintain their bunkers well past the warranty period, and these bunkers may need patching to repair holes from being dragged across the ground or seams splitting from being shot thousands of times at point blank range. i cannot stress the importance of PPPPPP (proper preparation prevents piss poor performance)! the actual slathering of glue on a patch and slapping it on a bunker is easy enough, but without prepping the surface, the patch will not hold very well or not at all. here is a short tutorial on how to patch bunkers.
*please read all steps before proceeding*
1. locate the source of the leak. large holes are easy, sometimes the tiny holes are hard to find. run a source of water over the surface of the bunker to find the hole.
the damage you see here was caused by a player stepping on the bunker with metal cleats.
2. thoroughly clean the hole, and the surrounding area as well. you need to completely remove any paint residue, paint shell, dirt, etc from the area. a good quality degreaser works well for this application. Do NOT use products such as acetone (or solutions that contain acetone), that could damage the fabric.
3. wait for area to dry, then use a fine grit sandpaper to roughen up the area to be patched. usually taking off the 'shine' from the surface is enough.
4. cut a patch large enough to cover the hole, plus an additional 1-1.5 inches beyond the hole all the way around. this gives the patch enough area to properly hold.
5. round off the corners of the patch. never use square patches! the corners on square patches peel back very easily, and this will eventually lead to the entire patch peeling off.
6. these next couple of steps must be done in about a 5 minute window of time, or else the glue will dry too much and you will have to start over. start with applying glue to the bunker. spread it over and around the hole until a thin film is covering the same area as the patch would cover. there doesnt need to be a paper thin layer of glue, but you also are not spreading jelly on toast- a happy medium between the extremes is good. if you run out of the glue that came with your field, find this:
7. same applies to the patch. wait until the glue becomes 'tacky' to the touch-if glue transfers to your finger when you touch it, its not dry enough. if the glue doesnt 'grab' your finger, it is too dry and you will have to reapply the glue.
8. you must be very exact on placing the patch. once the two surfaces come in contact with each other, that is where they are staying. you can place the patch while the glue is a little runny, just be aware that this will also increase how long you have to tend to the patch while it is drying.
9. wait 10-15 minutes for the patch to set, then apply a 'border' of glue around the perimeter of the patch. i find this increases the longevity of the patch, by sealing the edges and adding extra resistance to peeling.
10. wait 24-48 hours for the glue to fully cure. lay the bunker flat on a clean surface during this time.
11. busted seams have a slightly more detailed repair procedure. start with cleaning as usual, but make sure you remove any foreign debris from between the seam as well. the mesh layer should be white. if not, you still have liquid paint contaminating the surface, and the glue will not hold properly.
12. wait until the mesh dries, and sand the area around the seam and extend 1-1.5 inches beyond the damage.
13. apply glue between the seam. apply on both surfaces, and keep them separated until tacky. press together to make a good seal.
14. we are going to add a patch on the outside of the seam, as extra insurance against the seam busting again. cut the patch to extend 1-1.5 inches beyond the affected area on all sides.
15. repeat steps 5-10 (above) to complete the patch.
16. i have seen many patches fail over the years, and the main reason is because the surface was not thoroughly cleaned of all paint residue. MAKE SURE YOU CLEAN THE SURFACE OF ALL FOREIGN DEBRIS/RESIDUE/ETC!
17. remember, rodent traps are your friend! do not use poisons, they are not as effective as traps or electronic repellents. dont let this happen to you!