All main drains made in plastic are provided with UV protected grilles.
· According to UNE 13451-1 standard, in public pools:
– Water passing speed 0.5 m/seg
– Maximum suction velocity 1.5 m/seg
– Minimum distance between drains: >2 m
· Recommended use of WARNER security system to detect any irregularities and effect automatic shutdown of pumps Side connection with 2″ internal threads. Made in white ABS with grille fixed to flange. Suction velocity of grille 0.5 m/sec and max. flow 11 m3/h. Bottom connection with plug or for fitting the hydrostatic relief valve & drainage tube. Slots < 8 mm. Complies with valid standard. M5 threaded screws and brass inserts to secure flange and grille. Can be used in concrete spas and small pools.