I have recently got a good Schutz underseal gun and 6 x 1ltr bottles of hammerite underseal & added waxoil. However when the bottle is attached to the gun its quite weighty and bulky for tight spaces,and when youre under the car. So The tip of the day is!!! I have adapted the inner feed pipe by cutting it down,I can then fit a small container to get to those really tight spots,and I can fit a rubber pipe extension when I need to use the big bottles!! Its here the problem lies?????