Is this seam well sealed? Just test the tightness of your geomembranes with the VACUUM BOX and find every leak.
Test the tightness of your weld seams with Leister‘s VACUUM BOX. The re-vised model made from transparent, impact resistant plastic has a durable seal and is even more robust now. It provides you with a large, rectangular testing area of 810 x 310 mm. The manometer has a bar/psi scale. The fittings are well placed and the thumb pressure release makes the handling remarkably simple.