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north central Ohio | If it slopes some and then flat and then slopes again it can flush the line with enough water flow in the flat areas. If line is flat one end to other I would be more concerned about it silting full over time. Hopefully your contractor has been doing it a long time and has a good idea what works for your area. Sometimes the the cheapest tile are the most expensive. We have some really fine sand here that can plug a flat tile line up fairly fast. | |
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