𝐏𝐀𝐓𝐈𝐎 𝐃𝐑𝐀𝐈𝐍𝐀𝐆𝐄 𝐒𝐘𝐒𝐓𝐄𝐌𝐒 𝐄𝐗𝐏𝐋𝐀𝐈𝐍𝐄𝐃 Patio areas face constant exposure to rain and wash water. Without proper drainage, water stays trapped under slabs and slowly damages the surface. This image explains why drainage is essential and how a simple system can save your patio for years. 𝐖𝐈𝐓𝐇𝐎𝐔𝐓 𝐃𝐑𝐀𝐈𝐍𝐀𝐆𝐄 𝐏𝐑𝐎𝐁𝐋𝐄𝐌 When there is no drainage system under the patio, water collects below the surface. The soil becomes saturated and weak, causing uneven settle