English to Polish Tech/Engineering Construction / Civil Engineering

Mamy zbiornik na wodę zabezpieczony pokryciem z geomembrany:

The dimensions of the cover must be greatest when the reservoir is empty. This creates a problem during filling, when the slack accumulates on the leeward sides. This results in stressing the cover on the windward sides (...). Thus accommodation of the slack is a major design consideration. (...) presents a number of slack-accommodating designs using combinations of floats and sump weights.