In a bit of an impromptu barbecue-themed week, I thought I’d ask about building the key part of the experience: the barbecue itself. This is partly because I’m interested in hearing bbq ideas and partly because I’m thinking of building myself a little smokehouse for my birthday and I suspect there will be a bit overlap – and asking about smokehouses may be a little obscure.

So anyway, barbecues. John’s dad, my father-in-love, has built a number of brick barbecues – a squared-off u-shape of bricks to about waist height – from salvaged bricks: I think he used grill kits for the grill bits but there is a possibility he made the coals pan from scrap metal. I’ll ask him tomorrow.

But brick structures tend to be a bit permanent – what about slightly more mobile ones? Ones made from old oil barrels (or ideally non-oil metal barrels) seem quite common the DIY bbq world. Old gas bottles can apparently be used for smaller versions but there are more safety concerns with initial cutting.

Any other suggestions? Any ideas about things to use for the coals pan or the grill itself? And what about alternatives like fire pits?

We’ve had an email from Chrissy asking what to do with an old doormat:

The bristly kind. Compost it?

The bristly ones are usually made from coir – coconut fibre – so a natural material that will compost — but it can apparently takes many years to decompose. That’s a good thing really – we’d have to replace our doormats more often if they rotted every six months – and it probably would rot down quicker in a warm, moist compost bin than on the doorstep, but possibly one for a long term compost bin rather than a quick turn around one. (Also, be careful if it has rubber or synthetic backing – you might not want that breaking down in your compost bin at all.)

In her short and sweet email, Chrissy doesn’t say why she’s getting rid of it but depending on its condition, it might be reusable in the same or another capacity – if I had a spare doormat right now, no matter how tatty, it would go outside the door to our chicken run so I could wipe my feet on the way out before traipsing back up the garden. Or, I made a wellie stand a few weeks ago and it could easily be fitted out with some stripes of bristly coir to help clean the mud off them first.

Any other reuse suggestions?

(I suspect they’ll be an overlap between this and our previous question about making greenhouses but I thought I’d ask again because they’re a bit different.)

I’m having lots of fun growing stuff in our new garden. The old garden was considerably small and got no (no!) direct sunlight whatsoever, which made growing things a little difficult. Here we get a lot more sun – in different spots throughout the day – and that’s actually been a bit of a problem this summer – my current nursery area (the porch) has been getting a bit too hot for some types of seedlings. Next year, I’d like more nursery space generally too so I thought a cold frame would make sense.

Cold frames are one of those great DIY projects with more people probably building their own out of scrap than buying them new. But I’ve got a bit of builders’ block – unable to think what to use. I’ve got my eye out for old windows or the like, and I nearly yoinked my best friend’s old shower cubicle but it was way too big and would have been problematic to cut down – but aside from that, I can’t think what else I might use for the clear parts. Any suggestions?

As for the frame, my dad built his latest coldframe using the frame of my old childhood bed (a divan, so a ready-made frame), which made me start thinking about other ready-made frames to make it easier for my weak woodworking skillz: we’ve got an old table that could be flipped upside down to provide a solid base and uprights – attaching stuff to them would probably be a lot easier than starting from scratch.

Another idea might be to build a brick frame – we’ve got some salvaged bricks around the places – but I wouldn’t know how to hinge a lid to that. Hinging a lid isn’t vital, just useful though…

Any other suggestions? Any pros/cons to brick or wood frames? What have you done?

We’ve had an email from Martyn:

Can solid pond liners be recycled? If so, where please?

As far as I can see, rigid pond liners tend to be made from fibreglass and as we discovered last time we had a fibreglass item on here, fibreglass can be recycled but isn’t widely done so.

A better idea would be to reuse the pond liner. They apparently have a 20 year lifespan as ponds but after that they, presumably, begin to leak. (No one mentions what happens after that 20 years – I hope it’s start to leak and not explode violently killing everyone in a 50m radius. Because that would be bad.) If you don’t need it as a pond any more, offer it on Freecycle/Freegle to someone who wants one. Or if it’s started to leak and is beyond repair, you (or someone else) might want to use it as a planter or the like.

Any other ideas?

And what about reuse ideas for flexible PVC pond liners that have been damaged or are leaking?

I’m lucky because, working from home, I can take a plant-watering break pretty much whenever I or they need it – but I thought it was worth asking for people who have to leave their veggies baking in their greenhouse all day without a comfort break.

Above ground sprinkler type things (like the one in the picture) are apparently very inefficient at watering veggies – too much of the water evaporates on the surface before it has a chance to get down to the roots.

I’ve heard of people using holey old garden hose as a makeshift drip irrigation system but that seems like it might be a little hard to manage the flow – in my mind, the question has a second part that didn’t fit in the headline up there: “how can I make a reused or recycled irrigation system that doesn’t waste too much water?”

Any ideas?

(It’s also important to consider preventative water-loss measures – mulching and the like – which cut down on the amount of water lost to evaporation — what’s your favourite reuse/recycle for that sort of thing?)