New gutter install

[EDS_]

Originally Posted by nitynity

A third guy stopped by, he said no need for french drain and just install few catch basins and a long PVC pipe to drain out. That's the cheapest option. Two other guys suggested french drain is the only way to go. I really hope this would work. I wasn't excited about the french drain/corrugated pipe idea anyways. Fingers crossed.

For the win!

IMO ask questions:
1. What dia. pipe is he quoting?
2. If he's quoting 3" have him price 4" as well.........4" will cost more but move 2x+ the water and be less likely to clog and easier to unclog if it does.
3. FWIIW 2" only works in this kind of application over short runs or lots of slope........which I'm betting you don't have.




Look at 3 and 4" PVC flow numbers at 1 and 2% slope. assuming 1% and 3" pipe and limited tight turns that'll drain 630 gallons of water in 10 minutes........more than twice that at 4".

Use the constant slope portion at the top.
https://www.ndspro.com/PDFs/Tech-Spe...Flow-Rates.pdf


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Also if you go this route and gravity flow and drains don't work to your satisfaction the better fix would be to add a small pump and use the existing pipe* not dig a French Drain.

*A small sump pump mated to 3 or 4" pipe with a check valve in line will move crazy amounts of water in this type of situation. I'd bet there's 1 chance in 50 you'll need to do so. The gravity flow and drains system will almost certainly work well.

[nitynity]

Originally Posted by EDS_

For the win!

IMO ask questions:
1. What dia. pipe is he quoting?
.

It's 4" Solid Drainage Pipe, so it should be good.

[EDS_]

Originally Posted by nitynity

It's 4" Solid Drainage Pipe, so it should be good.

Perfect.

[nitynity]

Is it normal to require 50% down payment for drainage work?

[escanlan]

Originally Posted by nitynity

Is it normal to require 50% down payment for drainage work?

Each contractor for any work operates with their own requirements. It is typical though to have something of a down-payment before work begins. A 50% down-payment is typical when large amounts of materials are involved that are required to be used on site.


What I do recommend is that you closely review your contract to ensure it does specify a hard start date and hard completion time frame. If none are in the contract your 50% can be hanging in the wind until they get around to your job. Another item to ensure is in the contract is a cancellation clause so you understand how much you will lose if you choose to cancel the work at any point. It goes without saying that your contract should be detailed with specifications on what work is to be done, materials used, depths, etc., etc. Anything less and you have no idea what you will finally get until it is done and whatever you get is what you get!