Simple grey water system with grease trap design

Hello,

I have my dishwashing station in the garden and would like to feed the water to some plants close by.

But obviously dishwater is very greasy and soapy and contains little foodbits, so I need a simple design that starts of with a greasetrap and then one or two filtration containers with whatever works, sand, gravel, plants, etc, to then drain out into the garden.

For the greasetrap it is important that its easy to clean out the grease filter, as it becomes smelly.
And ideas of what to do with the grease would be great as well!

If anyone has any good ideas please let me know.

Thanks!

Hey man all you need is a sealable tank with a lid you can attach baffles too. The whole point of the system is to slow water down so the grease cools and separates from the water and floats on top allowing the water to pass through I drew a terrible diagram I wish it was more helpful. It could be done but I feel like you don't really need a grease trap unless you are dumping the fry daddy down the  sink. It might be better to just let it drain into a small cistern that feeds into a bog like garden before filling into another collection tank below it. This will take an industrial mind or a lot of grade change along the path of the water. Detergents and emulsifiers can cause issues in grease traps and if your system is over sized you can create acidic water and grease traps without adequate air intake will cause foul odors!  Making a holding tank that feeds a bog garden will filter all that out and take advantage of the solids as nutrients for something beautiful!

Thanks alot, yes something like this is was hoping to get. Since the grease gets trapped between the baffles i would call it a grease trap as well, i guess.
So the only question is how do i clean it out?
Ad not only does the grease collect on the top of the water, it also starts sticking to the side of the container and that is often what becomes smelly and difficult to clean somehow.
Thats why it would be good if theres some removable part that's not to big and easy to clean.

Any more ideas?

I dont know how long it would last but you could use a  large storage tub with a lid  cut a slot across the top in 2 places for the downward baffles and bend some sheet metal with a brake into a short  L shape and you could pull them out separately to make it lighter and maybe egg crate light diffuser cut to fit the bottom with another L bent that the horizontal piece would sit below the egg crate diffuser and hold it in place but allow it to be removed.

I would try that at least as a test then you could fabricate something welded that will last longer if the design seems to work.

Cleaning it out you could add a large spout to the bottom side of the trap area that you could open and drain after you skim the top. If you have a lid removable baffles and a drain point it seems like it would be very easy to clean it really well. It's a grease trap it doesn't have to be that clean. You really just want to be able to get  a pump hose and a wet dry vacuum to the bottom of each section.

If you want an extremely simple solution, you would need to set things up to get the sink higher than most of a plastic barrel. Years ago, a local fellow had their kitchen sink drain through a large colander (sieve) which was lined with shredded tree duff. Every day or more, he dumped the sieve into the compost, added fresh duff, and carried on. The barrel drained through a series of 3 bathtubs - two with cattails and one with reeds - and from there to underground weeping pipes with a manifold so he could direct the water to different garden beds. The sieve with tree duff caught bits of food as well as any grease and changed often enough, there was never any smell. The barrel was set up so that it slowly (rather than gushed) the water into his reed bed, but we're talking about an hour to drain - not leaving punky water for days to get ugly. His entire system was gravity fed, but he was on a low slope.

Too much grease in the compost can cause it to smell, also. In general, if I've got really greasy stuff, I use a scraper followed by paper to wipe up as much grease as possible, and we burn that stuff in our wood stove.

Best check local building codes people. Grey water systems may not be allowed. My place came with one. However, a couple months after moving in it started backing up. After locating it (with a p0lumber's help) and digging it up, I found out many things. 1.) Incorrectly designed; 2.) Biggest issue was that the morn for 20 years had been dumping his greasy food (frigging DA brit) down the drain. It was totally backed about 20 feet to the house. Container had to be taken out and cleaned out (smelt worse then a septic tank) and the overflow properly located on top (moron put on the underside of the container. 3.) Pipes were incorrectly connected to the housing pipes. 4.) Had to have the tub demolished and taken out and replaced with a shower and plumbed properly (totally incorrect, guy didn't know anything.)

Systems are great if done right and allowed, since they will save your leach field and septic tank.