How does this system work with standard 2x3 aluminum downspouts? I currently have Oatey diverter installed but wanted to add a first flush system

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

Can the ball get lodged in the tube by debris?

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.

Do you have any drawings or illustrations available on how this is installed and how it works?

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.

Where can I buy extra filter to fit in 3inch pvc pipe?

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.

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💧 Capture the cleanest rain—ditch the first flush, keep the best!

CERTIFIED QUALITY - Meets NSF 61 standards for water safety and reliability
SAFE SUSTAINABLE - Made from lead-free PVC ensuring clean, non-toxic water collection
COMPACT EFFICIENT - Space-saving dimensions that fit discreetly on your system
FLUSH OUT THE IMPURITIES - Diverts the initial dirty runoff to protect your water tank
PERFECT FIT EFFORTLESS INSTALL - Designed for standard 3" round downspouts for quick setup

The Rain Harvesting 3" Downspout First Flush Diverter Kit is a lead-free PVC system designed to divert the initial contaminated rainwater runoff, protecting your rain barrel or tank. Compact and easy to install on standard 3" round downspouts, it meets NSF 61 certification for safe water collection, ensuring you harvest cleaner, healthier rainwater for your garden or home.

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Brand	Rain Harvesting
Colour	White
Material	Polyvinyl Chloride (PVC)
Product Dimensions	10.2L x 15.2W x 20.3H Centimeters
Specification Met	National Sanitation Foundation 61
Shape	Round
Manufacturer	Rainharvesting
Color	White
Shipping Weight	0.73 Kilograms
Item Model Number	WDDS99
Item Part Number	WDDS99
Primary material	Polyvinyl Chloride (PVC)
Country of Origin	USA

Rain Harvesting 3" Downspout First Flush Diverter Kit, PVC, Round, White

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