Last week’s Reverse This question – about how to make a rain chain using recycled materials – has kicked up another question: how to make a water butt/rain barrel using recycled, reclaimed and repurposed stuff.

If you’ve got a rainwater barrel, it means the rain chain doesn’t need to end up in an ugly drain and, of course, it also saves the precious rainwater for use around the garden or in grey water systems.

The specific requirements for the butt depend on what the water is being used for but most I’ve seen tend to be reasonably opaque (to reduce algae growth) and many, particularly commercially produced ones, include a tap or a hinged lid to make it easy to access the water.

Any suggestions? What have you seen being used by creative allotmenteers? Has anyone got any experience of making an old-fashioned barrel like the one in the picture?

We’ve had an email from Danielle – experiencing situation that will be oh-so-common at the moment:

My kids love playing with water bombs. There are gazillions of split water bombs all over my garden and garage roof and god know where else. I have also collected a tubful thinking I might do something with them. But what …? Obviously they are all split ones?

We’ve covered foil balloons on the site before but not the rubber type – so any ideas?

Like regular balloons, they’ve got an roll of rubber at the open end – snipped off, they make strong (but quite tight) rubber bands.

As for the larger, flat pieces – anyone know any good ways to fix them together to make a patchwork? While it’s not going to be elegant, it might make a fun splashproof surface for in a kids’ room or used to add grip when opening stubborn jars.

Any other suggestions?

We’ve had an email from Rob asking what a million people up and down the UK will be asking given the recent rush of awesome weather:

How can I recycle charcoal from the BBQ?

At the moment it’s still sitting in there but need to clean it out soon. Any suggestions instead of chucking it out?

As I’ve said before in relations to ashes from bonfires, ash from wood fires – untreated, unpainted wood – can be used in the compost heap or in the garden to bring down the acidity of the compost/soil (don’t use too much though, then it’ll get too alkaline).

But most of the charcoal briquettes that people use on barbecues tend to have random things added that you wouldn’t necessarily want in your compost heap – so unless you know they’re 100% wood based, it would be safer to leave them off your heap/veg plot.

So any there any things that can be done with them instead?

We’ve had an email from Jack:

Probably a long shot but i was wondering if anybody could think of any uses for old bits of worn-out sandpaper (i.e. once that have passed their optimum sanding potential). I’m a carpenter and go through loads of the stuff!

A good question and for once I’m completely stumped – I can’t think of anything. Recycling is probably a troublesome too.

Any suggestions?

(Photo by Simon Eugster)

We’ve had an email from Elaine:

You’ve got lots of suggestions for things I can use as plantpots but what can I do with damaged ones? Cleaning out my greenhouse last weekend I found about thirty that had either cracked right down the side or on the bottom. I just want to recycle them really.

I’m not an expert on identifying plastic when it’s not in the standard milk bottle, water bottle or carrier bag categories but I think the plant pots I’ve got are mostly made of Polypropylene (Type 5) – a quick spot check of the bottom of pots in our living room confirms this. Type 5 plastics can be doorstep recycled in some places – check your local council’s advice on what you can or can’t include in your green bin.

Any suggestions about what Elaine could do if she can’t recycle them like that? Any bulk reuse suggestions?