My Gutters Go Into 4 Inch Pvc

Doubling the number of downspouts halves the required capacity for each.

My gutters go into 4 inch pvc.

I used a 3 4 stepdown coupling on the end of the pvc and put my black corrugated pipe around the 3 inch end. I used 4 pvc and fittings because it was readily available but any size would potentially work. There should be no more than a inch drop in the direction of the downspout. Size downspouts to fit the gutter.

The discharge will be at a nice point far from my house. A typical house in the chicago area can have in excess of 50 000 gallons of water fall on the roof in just one year. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. I m thinking 4 should be sufficient.

How many downspouts can i run into a single 4 pvc. This pipe has a smooth interior and closely resembles the thick walled plastic piping used for interior house drain and vent piping. Once every two years or so we get storms where the the existing gutter system on 90 of the homes in the area can t handle the flow of water from a torrential storm. The length will be about 200 ft from the first downspout to the discharge.

There will be a total of 4 downspouts merging into the same line. By connecting a series of pvc pipes underground and hooking them up to your gutter system you can divert the water away from the home and safely into a designated area. And topsites i do agree. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

Roof area the locale s rainfall intensity and gutter capacity determine how many square inches of downspout are needed. The rainfall that falls on an average roof can be tremendous. If it looks like the gutter is loose check the gutter fasteners. Fittings can be permanently welded to the pipe with pvc cement.

Once the pvc was glued i set it in the trench. Run water into the gutter at the top of the. Allowing your roof water to simply discharge onto and into the soil around your house is a big mistake. A square inch of downspout can drain 1 200 square feet of roof during a rain with an intensity of one inch per hour.

Step 1 start from the location of the down spout on the gutter system and mark the desired path of the pvc drainage pipe on the ground using construction marker spray. Smooth 4 inch diameter plastic sdr 35 sewer pipe is the material i prefer to use. It connects fairly well so the backfill was enough to hold that in to place. 5 inch 5 520 square feet.

Fasten a piece of pvc 45 degree angle joint to one end of a piece of eight to 10 foot long 4 inch diameter plastic sdr 35 sewer pipe. Wipe pvc glue using its applicator around the outside and. I don t think that side of the home has of 2k square feet of roof at the most.