22 GHz H₂O maser spectra obtained toward Gy 3–7 with the 32-m radio telescope in Torun from December 2019 to May 2020. The date of observations is indicated above each spectrum. Except for the spectrum corresponding to the observation on May 15, 2020, spectra are shifted vertically by 30 Jy (for the observation on March 21, 2020) and 15 Jy (for the remaining observations) to improve the clarity of the figure. Dashed vertical lines show central velocities of the lines detected in the latest (May 15, 2020) and earliest (December 11, 2019) of the six epochs of observations (see also Table A.1).