dannyboy1978uk

Hi all.

I will be running 2, 4 inch pipes to my nexus 200 with a view of having a seperate pipe for purginging. To save digging more holes and channels in my garden would it work just as well if a bought a heavy duty pump and took it from just before the nexus and pumped it up to a man hole drain using a large hose.

Thanks Dan.

double doitsu

im not sure about pods , but you could put in a t piece on your your 4" pipes a then you can purge to drains etc

koimaster

the pump might not pump as fast as the pressure from the water i have always found it easier to do as said have a t piece with a valve so you can flush that way.

dannyboy1978uk

If I had a t piece with a valve how many seconds do you generally keep it open to clean the pipes? Im trying to work out how much water per flush.

Thanks Dan

double doitsu

just flush it till you see the water is clear in genral it depends on the landscape and different ponds , in the ground ponds i find you need to flush longer because wind blows leaves etc in it ,but a out of the groud pond does collect as much in the pond , i have two vortexs so its pretty simple really ,

dannyboy1978uk

On a raised pond are we talking seconds till it runs clear or 30 seconds or even longer?

dan

double doitsu

at a rough guess i probally purge both my drains for about 30 second and just let it settle but i try and do mine twice a week , but that depends if you have run your pipes seperate to the filters or if you have joined them before the place you purge

double doitsu

the only thing i find wrong flushing straight to waste is if you have a few small fish 3"-5", they may be swimming pass then all of a sudden asta la vista baby, but if you flush into a vortex or a sump you can save the poor little blighter, i have a little platinum orgon and we have named him vortex , each time i flush he pops up for a ride

nishikiboy

Hi Danny Boy !
Whatever you decide, do NOT put 2 bottom drains into 1 4inch pipe !!!
all that does is half your flow, pumping or purging.
What I do is have 2 bottom drains running in seperate pipes,
they both go into the same Vortex settlement chamber.

I intend to alter this asap !
with all that flow, some solids get into the next media chamber !
then pump, then Aquadyne 2.2b Bead filter.
SO what I intend to do is run each bottom drain totally seperately,
i.e. take one of the 4inch feed pipes directly into a Nexus 200 then another sequence pump ( already have 2 returns )
I will just leave present UV and present Elecro heater on 1 return as it is now.

Presently to purge, I shut one 4inch pipe off with slide valve at a time and leave pump going flat out, 15, 000 litres per hour through a single bottom drain,
this clears pipe and ALL pond bottom of debris in less than an hour
THEN I repeat for other bottom drain.

In my opinion feeding a nexus 200 with 2 bottom drains will not work,
you will either exceed the max. flow rate for the nexus,
OR you will NOT have enough flow to keep the 2 pipes clear and / or bottom of pond clear !
THEN you will end up having to do what I intend doing !
If I were starting afresh now, there would be no other way I would do it,
I would run TWO nexus 200 eazy FILTERS, SEPERATELY WITH A SEPERATE PUMP FOR EACH ! ......... NO Vortex / Sieve required.
The filtration specialist, who will be doing the job, with me just labouring,
has looked into it and BEEN to Evolution Aqua to discuss it with them, and this is the way for me, as I can't afford to scrap £1,390 Aquadyne, so may as well keep vortex and 2nd chamber too, and add nexus 200 easy and 2nd pump seperate.

Incidentally a nexus Sieve coupled to a nexus eazy does NOT work !!!!!
The Evolution Aqua technical guy has told me via e-mail and the filtration man to his face that to use both their products an additional pump has to be put on a "balance pipe " between the sieve and the 200Eazy !!!!!
AND that the correct flow to a nexus eazy is paramount ! not too little and not to much !!!!

My koi filtration specialist has a 12,000 gallon koi pond with 2 bottom drains each running into a nexus 300 eazy and each with its own pump and return pipe to the pond, his water is the cleanest I have ever seen !!!!!
ALL his Koi are 75cm plus !!! he feeds 1kg pellets plus treats per day !!!!
When I was at his house, he had just strimmed the grass around his pergola posts and looking through his viewing window for over 2 hours the ONLY debris I could see was a SINGLE blade of grassmoving towards a bottom drain
Incidentally his bottom drains are aerated !!! which adds to the pull of the drains to keep the bottom clean !!!
he wants me to make both my drain covers aerated with an 80litre per minute air pump ( to change existing ordinary kockney koi covers to aerated, Alternative Aquatics do the kit @ £80 per cover ! )

Hope Mrs's kitchen doing well ! hee !! hee !!!
Peter.

koimaster

hey peter welcome back you crazy mare