DIY reef flush system

[cl0wn]

this is how i spent my bank holiday afternoon. gonna upgrade the return pump on the perc 90 from 1000 lph to 2000 so i can feed this.

http://www.ultimatereef.net/uploader/2008Q3/DSCF1230_Vga.JPG

and reef flush in action used a 1.5mil drill bit on some waste pipe. drilled holes to keep the bottom clean (insert joke here) and some to clean the rock up from underneath. needed quite a lot of holes, just kept drilling and testing to make sure i had just enough to have the pressure on the jets enough to avoid wear on the pump.

http://www.ultimatereef.net/uploader/2008Q3/DSCF1231_Vga.JPG

drilled some more

http://www.ultimatereef.net/uploader/2008Q3/DSCF1232_Vga.JPG

[Electric Monk]

The Tate modern called, they want their fountain back :D

Looking good sir.

[Gaters]

Brilliant:D Is it solvent weld pipe or push fit? I'll be 'borrowing' your idea for my new tank.:rolleyes:;)

[cl0wn]

just push fit, but it can be solvent welded, tis a nice tight fit tho. it's also snug in the tank so shouldn't (touch wood) blow apart.

[MrTang]

i do like this looks good so where is it going to be fit as i was working on the same sort of thing myself but just couldnt work out the best place to put it :):)

[cl0wn]

same size as the footprint of the tank. this is what i made so the flush will go underneath this.

http://www.ultimatereef.net/uploader/2006Q4/DSCF0789%20(Small).JPG

the plan is to trim around the sides as it's one square too big.

[cl0wn]

the grid at the back makes the rock easier to stack as it grips to the grid, it also allows flow round the back.

[dollydip]

looking good peter whens it going in?????:D:D:D

[cl0wn]

doesn't look too bad in:
(very old pic)
http://www.ultimatereef.net/uploader/2006Q4/DSCF1025%20(Small).JPG

[cl0wn]

looking good peter whens it going in?????:D:D:D

hi bud will ring you shortly to find out!!!:D:D:D:D:D

[MickTheFin]

Looks good, but do you think 1.5mm holes might clog up too easily?

Mike

[cl0wn]

good point was planning on putting a sponge on the pump.

[MickTheFin]

Good plan :)

I did something similar. My pump has a 1" (2.5cm) outlet which is (pi*r^2) 4.9cm^2 area. Since I didn't want the holes to clog I went with 4mm (0.12 cm^2 area). 4.9 / 0.12 meant I needed approx 40 holes to equal the outlet size of the pump placing no strain on it...

Hope that's how it works anyway :)

Mike

[ROB]

Would love to try somthing similar but at the mo things not Ideal however if things turn out ok may look into it as it looks a capital idea,

ROB.

[cl0wn]

mike may well use that formula and calculate the amount of holes needed. i just kept drilling until the "squirt" dropped.

[VP Clown]

Thats looking good.
Would it be easier to have a kick back with a valve on in the sump, this way you can control the discharge pressure of the pump, at the same time you may be able to judge the efficiency of the flush system on how far open or closed the kick back valve is set??

Andy

[moorish]

looks a good idea but as stated holes can quite easily clog if not big enough.derek

[cl0wn]

was beginning to worry about the clogging issue. would be able to reverse the pump and put the pipe on the intake, this would suck the crud out.