I think you should consider whether 'visible' is the same as 'noticeable'.
Will you not be filling the gaps in somehow anyway e.g. with soil, gravel, etc. Certainly the instructions for this walling system say you should backfill each course. I assume that includes the top one.
use the coping blocks?? This type of walling is usually laid with a coping on top which hides the v gap.
See the pic in the link
http://www.tobermore.co.uk/images/sized/uploads/gallery/Secura-Lite-3-780x546.jpg
The wall blocks are just l;ike yours with a v but the top coping is solid and cut to fit.
Will you not be filling the gaps in somehow anyway e.g. with soil, gravel, etc. Certainly the instructions for this walling system say you should backfill each course. I assume that includes the top one.
Ok thanks.If the forecast is below 7 cover them. They only need covered for the first night, or the second night also if a very hard frost is forecast (like -1 or worse)
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