how were the water tanks built?
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ᴠᴀʀɪᴏᴜs ᴍᴀᴛᴇʀɪᴀʟs ᴀʀᴇ ᴜsᴇᴅ ғᴏʀ ᴍᴀᴋɪɴɢ ᴀ ᴡᴀᴛᴇʀ ᴛᴀɴᴋ: ᴘʟᴀsᴛɪᴄs (ᴘᴏʟʏᴇᴛʜʏʟᴇɴᴇ, ᴘᴏʟʏᴘʀᴏᴘʏʟᴇɴᴇ), ғɪʙᴇʀɢʟᴀss, ᴄᴏɴᴄʀᴇᴛᴇ, sᴛᴏɴᴇ, sᴛᴇᴇʟ (ᴡᴇʟᴅᴇᴅ ᴏʀ ʙᴏʟᴛᴇᴅ, ᴄᴀʀʙᴏɴ, ᴏʀ sᴛᴀɪɴʟᴇss). ᴇᴀʀᴛʜᴇɴ ᴘᴏᴛs, sᴜᴄʜ ᴀs ᴍᴀᴛᴋɪ ᴜsᴇᴅ ɪɴ sᴏᴜᴛʜ ᴀsɪᴀ, ᴄᴀɴ ᴀʟsᴏ ʙᴇ ᴜsᴇᴅ ғᴏʀ ᴡᴀᴛᴇʀ sᴛᴏʀᴀɢᴇ.
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The tanks were usually built by building a strong wall of stones and mud across a small stream in such a way that with a wall on just one side, a large lake could be formed.
Polyethylene tanks are made by the roto molding or the plastic welding process. Polyethylene tank welding is a process in which two pieces of heat-softened polyethylene are joined through the application of pressure. .Water tanks used for storage are made from a wide variety of polyethylene chemicals.
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