Global Contract Services Pty Ltd or its agents do not take responsibility whatsoever for the preparation of the tank site or the installation of its products. It is the sole responsibility of the purchaser, or their agent to ensure the site has been prepared correctly, in accordance with these instructions and is maintained on an ongoing basis. The site must be prepared as follows: Tank site must be level and free of any rocks/stones or foreign objects that may damage base of the tank. Site must be solid. If fill is used, ensure tank site is well compacted. Tanks can be positioned on 75-100mm of level packing sand, a level concrete slab or a tank stand. Sand sites should be at least 300mm greater in diameter than the tank. Concrete slabs must be smooth finished to avoid rough screenings on surface. Concrete slabs must be of sufficient thickness and suitably reinforced to support the tanks weight when full. Tank stands should have hardwood decking spaced no greater than 50mm apart. Bearers must have sufficient strength to prevent deflection when tank is full. The tank should not be buried greater than one third of its wall height. If tank is to be buried, fill with water prior to back filling, and back fill with sand. Tank overflow should be run well away from the tank to avoid undermining the base. With tank stands, pipes should be supported by the stand, not the tank. In all installations make sure the outlet pipes are well supported and not depending on the tank walls for stability.

When connecting the valve, please use plenty of thread tape. The valve does not have to be tightened using stiltsons or the like. Hand Tight should be sufficient. Be aware that if the valve is over tightened, the seal on the brass fitting may be broken. Tanks MUST NOT be hard plumbed to the tank outlet or gate valve. A flexible pipe section (eg. poly pipe) a minimum of 300mm in length must be used.