![]() In both cases you still need to correctly site and install the sump chamber and pumps, backfilling with concrete. The main difference between these two applications is how you create the sump hole for the chamber to sit in. The approach to installing the sump chamber depends on whether you are carrying out a new build or retrospective installation. You’ll also need an electrician to do the electrical work. Here’s some questions you can ask them to understand their approach and you can also get an idea of what’s involved in a cavity drainage installation project. Getting a sump installed by a professional basement waterproofing company makes sense - we highly recommend using a qualified basement waterproofing contractor. There are a number of complex elements that are critical to the success of your sump installation and your cavity drainage system as a whole. If you are looking for more basic information on what sump pumps are, check out our guide. There are a number of elements you need to consider when planning how to setup your sump. In this guide, we take you through everything from creating the sump hole, the sump setup to installing the correct pumps. A sump pump plays a vital role in providing drained protection, which means the set-up and installation needs to match your requirements. At this point, the unit shouldn’t wobble even if you gently jostle it.When creating a cavity drainage system, your design should include a sump pump to remove any water entering the system. Now place the sump pump into the hole, backfilling around its perimeter with excavated dirt. Next, wrap a layer of filter fabric around the basin exterior to prevent silt and sludge from clogging the basin.Īdd 2 or 3 inches of gravel to the bottom of the hole you created, then place a paver or fieldstone over those pebbles in order to establish a stable platform. If yours doesn’t have these important perforations, take the time to drill them yourself. The most effective sump pumps typically feature weep holes, which allow water to enter from the sides and from beneath. STEP 2: Prevent possible clogs and place the sump pump in the hole. After penetrating the masonry, continue digging until the cavity can fit the pump basin. To break through concrete, you need to use either a sledgehammer or jackhammer. Of course, when your basement floor is concrete, digging a hole is more easily said than done. Here, dig a hole wide and deep enough to accommodate the sump pump (the top edge of which should ultimately sit flush with floor level). Identify the lowest point in your basement the area where you usually first notice moisture accumulation. Photo: STEP 1: Select a location and prepare the site.
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