How to find a cover for drain?

[Rileythornbury]

 

I had an old drain cover that was a hazard for kids. So have removed thinking I could easily find a plastic cover for it. 
Unfortunately the standard and available size is too big. 
What are my options? 
The diameter is approximately 90mm. I’d like it to sit as flush to the ground as possible. 

[EricL]

Hello @Rileythornbury 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your drain cover. 

There are a variety of grates that you can test on the 90mm pipe such as the Holman 90mm PVC Storm Grate. There is also a metallic version, but none of them will lay flat inside the pipe, they will all have a small lip exposed as this prevents the grate from sliding all the way down the pipe. If the grate is the same size as the pipe, you'll need to use a device called a Holman Storm PVC Slab Adaptor 90mm which will allow you to connect the metal pipe to the drain cover.

Let me call on our experienced members @Noyade, @Nailbag and @Dave-1 for their recommendations.

If you need further assistance, please let us know.

Eric

[Dave-1]

Afternoon @Rileythornbury 

Mmmmm Just went googling for

"Thick Stainless Steel Anti-Clogging Roof Drain Strainer Filter - Easy Install, Odorless, High Displacement for Garden and Outdoor Use - Durable, Corrosion-Resistant, Metal Silver Finish" 

and found a few possible ideas.... (3rd one across the top for me)

Then had a look at Bunnings  

And found this under special orders

Bellessi Chrome Round Drain Cover 

BTW id rust proof paint that top of the pipe soonish just to stop potential stuff happening

Dave

[Noyade]

Thank you for the tag @EricL .

Unfortunately, my ideas and 'solutions' tend to be rubbish and go nowhere. 

For example, in this case I would weld three nuts equidistant from each other inside the pipe - and only on their sides, not the top.

They would be on a level dependent on the steel plate purchased - maybe 5 mm thickness.

Template the internal diameter - transpose - and cut the plate and grind so that it 'drops' in place on the three nuts.

Mark the nuts position - remove the plate and drill countersunk holes to match.

Return the plate and screw down.

Everything would be then level with the pavers.

And I have to ask - why was the original grate a "hazard to kids?"

Even my dog is unimpressed.

"Dumb idea Noyade!"

[Rileythornbury]

Thanks all. 

The hazard was an old sewerage inspection point that was right next to where we have an outdoor table and chairs. My little kids ran into it every time we are in the backyard. 

I will try the suggested products tomorrow and report back! 

[Nailbag]

Hi @Rileythornbury 

The pipe looks to be old cast iron, so it's unlikely to find a direct off the shelf solution. Measure the inside diameter of the pipe to see if any of those grates @EricL suggested will fit internally. Otherwise something curved like this grill could be Sikaflex'd to the top. It won't be level to the ground and less of a trip hazard, but nothing will be unless you can lower the top cut of the pipe.

Nailbag

[Walter]

@Rileythornbury 

I've done  something similar to this for others, and myself.

I've 3D printed a Grated Cover. With 80% infill and a really good quality Black PLA+ filament for instance, it lasts for years.

A fence post cover I made for my neighbour 5 years ago shows no sign of wear, and it's been exposed to the elements all this time.

If it ever needs replacement, I still have the model, and I can run up another one in under an hour with my newer printer.

The trick is to get the right amount of infill (density) so it doesn't break or weather easily, and can expand/contract.

You can also lacquer to give added protection/longevity.

If you have anyone you know who can do this its relatively cheap, it will work a treat, and can be made to exact measurement

Something like this scaled up or down

There are now materials other than PLA+ that can do well, and though more expensive, are excellent also, but the normal PLA+ will last a loooong time

Printed to the correct size, you would get a good static fit.