Rust detected in PH

[typrobin]

hi, i was dismantling my PH (oceanfree) to DIY a pin wheel impeller and to my horror, i saw lotsa rust in the impeller itself...

gosh, i had been using the PH for sometime already, wonder if anyone faced the same problem as me?

i was wondering, since most PH uses magnetic fields to rotate the impeller, there should definitely be IRON in the impeller rite??

any good brands that is fully plastic? wat's the most reliable brand of PH for marine tank??

i always thought only those taiwan and china brands are sub-standard products, nvr new that ocean free is also the same....

pls advise....

[dr evil]

so that is why, when choosing a PH, make sure it is a ceramic shaft.....

[arcanehacker]

..

i always thought only those taiwan and china brands are sub-standard products, nvr new that ocean free is also the same....

pls advise....

dun expect oceanfree products to be good. Its supposed to be cheap.. how good can the products be..

[Jun Hong]

Gosh! I am using Ocean free pump too! Never dismantle it before. I thought the shaft for the impeller is made of ceramic.

Do you notice any other part of the pump is made of metal?

[aStRoBo|]

so that is why, when choosing a PH, make sure it is a ceramic shaft.....

how to lookout for it? cant possibly to dismantle all.. will the seller approve?

[dr evil]

how to lookout for it? cant possibly to dismantle all.. will the seller approve?

u dont need to dismantle if u dont know.....just ask the LFS. And, it should be written on the box....

the cheapest PH with ceramic shaft is mr Aqua........cheap and good

[aStRoBo|]

u dont need to dismantle if u dont know.....just ask the LFS. And, it should be written on the box....

the cheapest PH with ceramic shaft is mr Aqua........cheap and good

noted.

[typrobin]

another thing tat i noticed....

even if it is stated as ceramic shaft, there is still a piece of metal (it is the metal pin that hows the whole impeller together) somehow...

i opened another OceanFree PH and found rust AGAIN....the only one tat i have not dismantle is the return pump, which i shall do over the weekends....hope i do not get another heart attack....

[typrobin]

the metal part i am refering to is this....anyone has any suggestion?? or should i juz leave it as it is??

i don't think even AQUA recommended by DR EVIL has anything special rite??

[typrobin]

forgot the picture....

[BarraCudaTM]

forgot the picture....

looks familar

btw I dont have the probelm of rusting shaft as I have been running my OTTO powerhead under saltwater for 2years and uses them for circulating my DIY rocks pail which contained alot of cement particles.

[typrobin]

here's a pic of my rusting stuffs.....i think the metal piece on the right is definitely in all PH.that means all PH are rusting right??

having BIG headache now, god pls tell me wat to do / let me win 4-D so tat i can buy more PHs!!!

[Jun Hong]

Hi! typrobin

I think you misunderstand the meaning of "Shaft"!

The part you pointed as "shaft" is actual "magnet". The rusted part is metallic shaft.

What is the model of your Oceanfree power head?

I am using the Oceanfree 5000 for my return pump which use "ceramic" shaft and it stated it can be used for both salt and fresh water.

Is your return pump Oceanfree brand too? I urge to know whether is it rusted when you dismantled during this weekend?

[Jun Hong]

By the way, any expert like to tell us will the Iron released by the rusting shaft affects the healthy of the fish or coral?

I thought Iron is one of the nutrient required by algae