My first flood and drain table, need some recommendations!

Hey RIU so I have grown in DWC almost exclusively for a year, and have a spare 1k watt (ya I know wtf was I doing?????) Anyways im wondering I want to do a single resivor table to go under the 1k watt, so im assuming my table should be like 4x4 due to me using a 1000 watt or maybe 5x5? Now my other question is for tables that im flooding of that size, what size resivor will I need and how often should I flood the table?

Also comparable how is the yield of those done in dwc vs flood and drain?

Once you have chosen the tray size you will then need to size a reservoir for the tray. The calculation for this is quite simple: Height you wish to flood in the tray (H) x Width of the tray (W) x Length of the tray (L). For this calculation it is best to convert feet into inches. Then multiply the cubic inches by 0.0043 to convert it into gallons.

Example:
For this example lets use a 3’ x 6’ Botanicare tray. The plants will be growing in 6”x6” rockwool cubes, thus the tray will flood up to 4”.

Reservoir size required (gal) = ((3’x12) x (6’ x 12) x 4&#8221 x 0.0043
= 36” x 72” x 4” x 0.0043
= 45 gallons (minimum)