My floor drain keeps backing up in my basement when the washer drains at first. 07-10-2015, 09:08 AM It was suggested that I have a backflow installed in the drain to prevent this from happening. This is the floor drain(1.5 inches in diameter) that my dehumidifier hose runs into. ... What To Do During A City Sewer Backup From Heavy Rain. My Basement Drain Keeps Backing Up On November 26, 2020 By Amik 4 signs your main sewer line is clogged what causes ge backups in basements causes of basement flooding utilities troubleshooting a clogged sewer line floor drain basics structure tech Storm water backing up into your home. If the sewer backs up, sewage can back up through the drain hole. Frequently they are corroded, so you might need a wedge plug. Low Points near Foundation What to look for: Standing water during and after rain. I replaced the float plug thinking maybe that had gone bad, but it just backed up right through that the next time we had a heavy rain. We checked the washing machine hoses and water lines and have not found a leak. #2 Flying, crawling and slithering into our domain Yes that’s right; cockroaches, flies, moth flies (also known as sewer flies) and other crawly things can creep up floor drains. After A Heavy Rain Storm. I am not sure where the drain goes, but in the 5 years that I have lived here the drain has overflowed twice. If the waste drains into a municipal sewer, a sewer pipe may be cracked or the soil may be saturated with water. This does not occur when we flush the toilet or shower, only when we use the kitchen sink. If your basement floor drain backs up when toilet is flushed, or there is sewer backup in basement, watch the video to learn more. During rain Hint: Bungalows often have 2 or more downspouts to drain the many roof areas. You still want a floor drain in your basement regardless, unless you want to sump pump it up to ground level or something and that costs money. Then I woke the next morning to a puddle of water in the kitchen floor from my dish washer it keeps filling up with water and won't drain on its own . Footing drain. Solutions for Water Backing Up After Rain. Perennially wet soils Where: Near foundation When: During rain. We had bought a new washer and was told the drain pipe was not large enough for new washers which put out water with more force. Floor drain backs up when doing laundry. And while it is commonly held that a sewer drain backs up largely because there is a blockage or break in the sewer line, some homes have floor drains attached to the storm sewer system. If water drains slowly or backs ups in pipes after heavy rain the septic system could be flooded. Basement Floor Drain Overflowing Under Hard Rain [ 2 Answers ] Hello, I have a house that was built in 1989. Of course this can only be done if the floor drains serve no purpose, and plugging them does not violate any code. Normally, backed-up sewage comes through the drains in a basement first, since this is generally the lowest part of the house. Facebook 0 Tweet 0 Pin 0 LinkedIn 0. Front-load washing machine has water around it when wash cycle finishes. I really just believe you need a blockage in your existing sewer cleared, and then magically, no back-up of sewer water (whether the ultimate source is your own plumbing appliances, or just your groundwater as is often the case in old clay tile sewers). If water is coming up from their floor drain and they don’t have an obstruction in their sewer then the city main is backing up. Even light rain can enter your home. We have a floor drain in our basement that ties directly into the sewer. Foundation drain along with a partial downstream pipe collapse I should say. Have you noticed that your basement floor drain backs up when the toilet is flushed or when it rains? This is one of the few times when it’s best to avoid septic tank pumping. It seems to happen in very heavy rain and will stop when intensity of rain slows down. Plumber’s first step will be to use a motorized rain snake or auger to attempt to clear the line. Noticed a couple cracks in floor in last yr. Leave a Comment. Spring showers can cause basement floods. Without a route to the main sewer system or septic field, wastewater may have nowhere to go but to back up into your fixtures or up through floor drains. I found an illegal interconnection under my basement recently that caused what you described after a heavy rain. You’ve made it! My floor drain, washer drain, and basement sink drain are connected and drain to the sump pump. The best way to plug them is using a backflow valve that will permit the water from the footing drain to enter the sewer but stop sewage from backing up into the drain. 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