Sub base damp from water irrigation system

Question

Hi guys
I have a small project going on in my front garden. I am extending my pathway and have dug out the area for the sub base to approx 150mm. I have included a membrane and then compacted the sub base on top and everything looks fine.

My problem is that next to the pathway I have a flower bed with a water irrigation system that waters each morning. The soil type is extremely clay like and each morning when I wake up the area where the sub base is laid is always damp.

If I stop the watering for a week while the sub base dries and then lay my porcelain tiles using a wet bed of mortar. Once this dries and I turn the irrigation system back on again will the damp sub base cause an issue moving forward?

If so how can I stop the water from the flower working its way into the sub base?

Thanks

Tony · Answer

If your sub base is lower then the bed you are watering? If its clay based then water will seap through if you have broken the clay in to your sub base

Sub base damp from water irrigation system

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