--- product_id: 5802354 title: "Rain Harvesting First Flush Downspout Diverter Kit, 3\" Round Pipes" brand: "rain harvesting" price: "AR$366965" currency: ARS in_stock: true url: https://www.desertcart.com.ar/products/5802354-rain-harvesting-first-flush-downspout-diverter-kit-3-round-pipes store_origin: AR region: Argentina --- # First flush diverts initial runoff Customizable pipe length for volume Auto-draining slow release valve Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes **Brand:** rain harvesting **Price:** AR$366965 **Availability:** ✅ In Stock ## Summary > 💧 Capture the cleanest rainwater and never settle for less! ## Quick Answers - **What is this?** Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes by rain harvesting - **How much does it cost?** AR$366965 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/5802354-rain-harvesting-first-flush-downspout-diverter-kit-3-round-pipes) ## Best For - rain harvesting enthusiasts ## Why This Product - Trusted rain harvesting brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable polypropylene construction ensures long-term performance - • **Seamless Integration:** Designed specifically for 3-inch round downspout pipes for quick installation - • **Tailored to Your Needs:** Easily customize diversion volume by adjusting pipe length - • **Set & Forget Efficiency:** Auto-draining valve preps system for the next rainfall without hassle - • **Pure Rainwater, Every Time:** Diverts first flush to keep contaminants out of your tank ## Overview The Rain Harvesting First Flush Downspout Diverter Kit efficiently diverts the initial runoff containing contaminants away from your water tank, ensuring only high-quality rainwater is collected. Featuring an auto-draining slow release valve and customizable pipe length, it integrates seamlessly with 3-inch round downspout pipes for easy installation and maintenance. ## Description When it rains, water slowly builds up in the roof gutter system before it exits through the downpipe. from decomposed insects, lizards, bird and animal droppings and concentrated tannic acid. It may also contain sediments, water borne heavy metals and chemical residues, all of which are . Instead of flowing to the water tank, these pollutants are diverted with the initial flow of water into the chamber of the water diverter. The water diverters from Rain Harvesting utilize a dependable ball and seat system - . ## Features - FIRST FLUSH: Divert the initial runoff to ensure only the highest quality water is captured - AUTO DRAINING: Featuring a slow release valve which will automatically drain the chamber ready for the next rainfall - JUST ADD PIPE: The First Flush with Catch All Tee includes everything you need to install - just add 3" pipe for the chamber - CUSTOMIZE YOUR DIVERSION VOLUME: The system is easily customised by adding the length of pipe to suit your first flush requirements - CONTAMINANT PROTECTION: Prevents both organic and inorganic contaminants from entering your water tank, ensuring high quality water collection - COMPATIBLE WITH 3 INCH ROUND PIPES: Designed specifically to work with 3 inch round downspout pipes for seamless integration with your rainwater harvesting system ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B001OWG6BU | | Best Sellers Rank | #98,797 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #111 in Gutter Downspouts | | Brand Name | Rain Harvesting | | Color | White | | Customer Reviews | 4.5 4.5 out of 5 stars (260) 4.5 out of 5 stars | | Item Dimensions L X W X H | 4"L x 6"W x 8"H | | Manufacturer | Rainharvesting | | Manufacturer Part Number | WDDS99 | | Material Type | Polypropylene (PP) | | Model Number | WDDS99 | | Number Of Items | 1 | | Shape | Cylindrical | | Unit Count | 1 Count | ## Product Details - **Brand:** Rain Harvesting - **Color:** White - **Material:** Polypropylene (PP) - **Product Dimensions:** 4"L x 6"W x 8"H - **Shape:** Cylindrical ## Images ![Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes - Image 1](https://m.media-amazon.com/images/I/41g8s76RJuL.jpg) ![Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes - Image 2](https://m.media-amazon.com/images/I/31slASOvgNL.jpg) ![Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes - Image 3](https://m.media-amazon.com/images/I/21ceEiCfhcL.jpg) ![Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes - Image 4](https://m.media-amazon.com/images/I/41ItUHEHmmL.jpg) ![Rain Harvesting First Flush Downspout Diverter Kit, 3" Round Pipes - Image 5](https://m.media-amazon.com/images/I/41urvd2WJEL.jpg) ## Questions & Answers **Q: How does this system work with standard 2x3 aluminum downspouts? I currently have Oatey diverter installed but wanted to add a first flush system** A: It will certainly work but you need other parts...like this...http://www.amazon.com/InvisaFlow-4400-Grate-Downspout-Filter/dp/B0061Q5DW2/ref=pd_sim_lg_8?ie=UTF8&refRID=12SVWE9CH475G0A0P16W You definitely want a filter above the unit. Here is another one http://www.amazon.com/Rain-Harvesting-Pty-Ltd-Advanced/dp/B004VMG05C/ref=sr_1_4?ie=UTF8&qid=1430844792&sr=8-4&keywords=First+Flush **Q: Can the ball get lodged in the tube by debris?** A: If debris is large it is possible. The 3" first flush is a bit tighter than the 4". Do know this, smaller debris will clog the screen at the bottom before the ball will get lodged, this will make prevent/slow the initial bad water from draining properly. Also consider the amount of water you need to flush based on roof surface area flowing to the flush. Reduce debris that could clog the system with gutter guards not expensive and just put them on the gutters feeding the capture system. This will also help with the routine maintenance, you need to clean it out the sediment/small debris to keep it working at it's best. If you were wondering why you see fine screens offered with the system. Fine screen keeps small debris out of the drain screen allowing better draining and longer intervals between cleaning. Picking little twigs, pine needles and stems of leaves out of the drain screen supplied with the system is no fun. The fine mesh over this is a plus in so many ways. Hope this helps and good luck. **Q: Do you have any drawings or illustrations available on how this is installed and how it works?** A: Yes, we do, but you will need to email us through Amazon support so that we can email you the attachments that you need. As there is no way to provide an attachment here. **Q: Where can I buy extra filter to fit in 3inch pvc pipe?** A: You would need to reach out the manufacturer for help with this, they are good at taking care of these requests, we do not carry extra parts. ## Frequently Bought Together - Downspout First Flush Diverter Kit, 3" - Leaf Eater Advanced Rain Harvesting RHAD100 Both 3" and 4" Compatible - Rain Harvesting Tank Gauge, Tank-Top Water Level Monitoring Device for Rain Water Catching Systems --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/5802354-rain-harvesting-first-flush-downspout-diverter-kit-3-round-pipes](https://www.desertcart.com.ar/products/5802354-rain-harvesting-first-flush-downspout-diverter-kit-3-round-pipes) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-16*