Cut the English and Lebanese cucumbers into quarters lengthways, then chop into 1.5 cm pieces. Place in a colander and sprinkle with the salt. Toss well and leave over a plate to drain for 30 minutes.
Wash the salt off the cucumbers and pat dry with paper towels. Transfer to a bowl and add the vinegar, oil, dill and parsley. Toss well and taste, adding salt if necessary. Leave for 10 mi