stevehaigh Posted February 27, 2009 Share Posted February 27, 2009 i need an underground water tank, big capacity, about 20-40,000ltr (20-40 m3). does anyone have experience about the best and cheapest way to do that? in the past i've built them from reinforced concrete, same as a swimming pool but that's quite expensive. a 32,000 ltr tank would be 4m x 4m and 2m high and probably cost about 200,000 baht to build on Ko Phangan. i've considered building the walls out of red brick and rendering it a couple of times for water tightness but i'm worried about cracking of the walls over time. if i use pre-cast large diameter concrete pipes i would need a lot for that kind of volume. does anyone have any suggestions or experience with underground water tanks? thx steve Link to comment Share on other sites More sharing options...
patklang Posted February 27, 2009 Share Posted February 27, 2009 may be a good idea for an exterior tank as the experts are forecasting a drought. Best be safe than sorry Link to comment Share on other sites More sharing options...
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