Blog / Technical guide
Surveying a tank for an immersed UF retrofit
Collect tank, lifting and hydraulic measurements for an immersed ultrafiltration installation.
HOSON WATER editorial ·
Record operating levels and obstructions
Supply a measured tank drawing that shows normal, high and low water levels, floor slope, connections and existing structural supports. Mark internal weirs, mixers and piping that affect module location or water movement. Take measurements at the intended mounting points and verify the information against the current installation before approving rack drawings.
Measure the full removal path
A module must fit the tank during operation and pass through an access route for maintenance. Record the opening, lifting height, crane coverage, drainage and the location where a removed rack can be placed. Confirm the wet lifting mass, certified lifting points and the equipment needed to move it safely. Include any restrictions on removing a cover or temporary handrail.
Define the hydraulic and service interfaces
Mark permeate headers, air scour, waste drains, cleaning connections and isolation devices. Ask the supplier to explain distribution across the selected racks and how one rack can be cleaned or isolated while others remain available. Identify any civil modification before the order so it can be included in the shutdown and construction schedule.