How Can We Get Rid Of This?

It's rainy season once again and every single time it rains, these streaks appear on our walls. I bet that a lot of people also have this problem. So in today's video, it's not just about how to clean these wall streaks... it's also about how to keep it happening again. Links: My favorite DIY table : Link 1:https://bit.ly/3xiCu5r Link 2:https://bit.ly/3xesYQP Angle grinder I'm using :https://bit.ly/35eSTfe Drill I'm using : https://bit.ly/3iAEdPm Drill brush set (Cheaper to buy as a set) : https://bit.ly/3pMQfXr Mighty bond : https://bit.ly/3vrgGDv Builders bond (pouch) : https://bit.ly/2ROIWlF Builders bond link 2: https://bit.ly/3pPKmsD Builders bond (tube) : https://bit.ly/3wmDO7o Caulking gun : https://bit.ly/2SkRwsF Elastoseal : https://bit.ly/3xfmMI5 Painter's tape : https://bit.ly/3iDqmYK