looking for some DIY stuff for my pond

just looking for info and tips....

i am going to start my pond back up and i am looking to make a DIY filter.
what i have so far:
300 gal pond
pond pump rated for 350gph

i am looking to make my own filter...
the pump will be submerged in the pond(with a pre filter)
the filter will be external with a UV sterilizer attached.

i would like some info,sites with some step by step instructions
on how to connect this all. i have been doing some research and
most of the stuff that i am finding are for ponds like 3000 gals
and larger.

any tips and info would be greatly appreciated..

thanks
paul

The DIY filters that use 5 gallon buckets or other barrels work great. Just because it is rated for 3000 gallons does not mean it won't work in a 300. I have seen some very nice flower pot idea to hid the pump as well as the 5 gallon buckets or even other hidden pond boxes that house bio material.

The pump will dictate how much water is exchanged and the best part is that if you build a filter for a large pond and use it on a small one it will 1. likely not have to be cleaned as often 2. is useable on larger ponds you might get in the future 3. You don't have to worry as much about it being just barely big enough.

Depending on your pond...you mentioned 300g...maybe look to natural filtration. That is what I'm looking at for when I build mine.

Basically have a large tank structure sitting above the pond kindof like a flower box if you will. This will have gravel and good nutrient absorbers like Hycinth in it. The pump will of course pull the water from the pond into the filtration box and nature will do it's thing from there.

For the out flow, make something to the effect of a waterfall or even a water wall going back into the pond.

I have a nice link somewhere floating around where I got this from. Let me go digging to see if I can find it again.

You should look into Algae scrubbers they work pretty well vs a uv. Plus its a bit greener.

Here is what we have for our 350g pond. It's a 1,000g pump with a 2,500g filter. It filters the pond water 4 times an hour. It also has a uv light in it which I love. No more green water.

This first picture shows how we dug a hole next to the pond and put the filter in it. This way it isn't above ground looking shoddy.


This picture shows how I made a cover for it out of plastic grass mat and plastic canvas to hide it.


This picture shows how I connected the plastic canvas together.


Here are a few pics of the waterfalls and fish.

i am making my filter out of an old sand filter unit... my question is should i put the
UV filter before or after the actual filter? i have seen some both ways but i was wondering if there was a specific way or if its just a preference.

Thanks