Browse Forums Eco Living 1 May 21, 2010 10:17 pm I want to get 2 x 9000ltr tanks to hook up to the house for domestic use as part of the reno. Anyone have a feel have had experiences for which type type of rain water tank is better? Plastic or galv? Have heard that plastic can crack after time and the ones made out of china can be suspect. From what I have read warranties are about the same length. Only problem with galv I can see is rusting after time. Both affect taste? Will be filtered before drinking anyway. Thx Re: Plastic v galvenised Rain water tanks 2May 21, 2010 10:53 pm I have been told that poly tanks would tolerate prolonged contact with puddles better. We just ordered out 3rd 30K Bushman tank. Colourbond also make a Zincalume tank. Re: Plastic v galvenised Rain water tanks 3May 31, 2010 10:15 pm Plastic tanks that crack can fail completely? i.e 7000 liters of water suddenly runs wild? Sounds like an OH&S issue. Would a covering or protection from UV assist in preventing this? Metal tanks rusting out can be lined with a tank liner and its also possible to repair them. Putting them on concrete at ground level would not help. Also designing the cement base to drain better would lead to a longer lifespan if you cleaned them out once a year. Re: Plastic v galvenised Rain water tanks 4Jun 08, 2010 1:05 pm lyno69 Have heard that plastic can crack after time and the ones made out of china can be suspect. As someone who works in the plastics in industry (nothing to do with water tanks) I would stick to Oz made plastic tanks if you're going plastic. I believe that you can get some good quality ones with long warranties. PE resins are not the same & like all things, you usually get what you pay for. I assume there would also be variation in wall thickness. Re: Plastic v galvenised Rain water tanks 6Aug 13, 2010 11:56 am Having installed 1000 or so poly tanks, i have never seen or even heard of any Australian made tanks cracking due to age. You may find the VERY rare one that will crack on a seam, but that is a manufacturing fault and would be replaced under warranty. The poly tanks used in Australia are UV stabilised and food grade, more importantly they are more impact resistant than a colourbond tank and they will never rust! Re: Plastic v galvenised Rain water tanks 7Aug 13, 2010 12:37 pm We have an FRP tank. Just to add to more choices. Re: Plastic v galvenised Rain water tanks 8Aug 13, 2010 2:17 pm Fibreglass Reinforced Plastic (FRP) tanks are ideal in some situations, bushfire prone areas especially as they have an higher resistance to heat and are considerably stronger than poly. Re: Plastic v galvenised Rain water tanks 9Aug 14, 2010 6:45 pm Thanks Brad for the added explanation. I should have done that. I guess we chose it for visual appearances and I guess having one with higher resistance to heat was a bonus. Re: Plastic v galvenised Rain water tanks 10Aug 14, 2010 8:04 pm If your tanks are unprotected in the flame zone they will fail structurally regardless of whether they are steel, plastic or fibreglass. The main issue to protect them from collapsing from the ember attack. Re: Plastic v galvenised Rain water tanks 11Aug 15, 2010 12:18 pm Depends how intense the flames are. Have seen some around here subjected to non-crown fire and they just melted down to the water level but remained intact. "Now, supposing a house to have a southern aspect, sunshine during winter will steal in under the verandah, but in summer, when the sun traverses a path right over our heads, the roof will afford an agreeable shade, will it not?" -- Socrates, ca. 400 BC That was always going to be a challenge and a test of patience. Full marks to your mate. Did you discuss the wet area near the trampoline? 16 17353 Can a plumber put a tap on a rain water tank which is full? Tank is similar to one in photo. Cheers. 0 1668 DIY, Home Maintenance & Repair At a bit of a loss on this one - we're thinking the original owners never removed the protective laminate covers from their kitchen cabinets after installation and in the… 0 6330 |