![]() The more wider the channel is the more expensive the grating is since you need more steel to handle the loads. The gratings on the trench drains are available in many different shapes. Other advantage is that these are less expensive than a normal trench drain (please compare stainless steel with stainless steel and not with plastic / or polyconcrete drains. The advantage is that you can discharge the same amount of water as any other drain since the drain outlet is the same, It can hold only less water. You have special tools which you can put in the drain, rotata 90 degr, and push the dirt out. The problem with these slotdrains is that some of them are poorly designed, meaning that you can not see if the drains are clean, or not. ![]() I have sold these drains to the food industry.
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