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Subject: One 2" opening to be provided in bottom of tank located at all low spots tech. WATER DRAINSOne 2" opening to be provided in bottom of tank located at all low spots, fitted with 2" x 2" self closing water drain-off valve. Extend 2" drain lines with ball valves, 90-degree ells and pipe nipples to the side of the unit for easy access. Valves are to be located as close to filter water drains as practical. Cables to be provided to operate valves and pull rings to be located beside of respective valve. |
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Что-то типа Во всех нижних точках дна бака необходимо выполнить по одному отверстию диаметром 2 дюйма и снабдить его самозапорным клапаном для слива воды 2х2 дюйма. (похоже, дно бака имеет сложный профиль) |
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